all these changes

frontend/node_modules/@turf/line-intersect/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2017 TurfJS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/@turf/line-intersect/README.md

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+# @turf/line-intersect
+
+<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
+
+## lineIntersect
+
+Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
+
+**Parameters**
+
+-   `line1` **([Geometry][1] \| [FeatureCollection][2] \| [Feature][3]&lt;([LineString][4] \| [MultiLineString][5] \| [Polygon][6] \| [MultiPolygon][7])>)** any LineString or Polygon
+-   `line2` **([Geometry][1] \| [FeatureCollection][2] \| [Feature][3]&lt;([LineString][4] \| [MultiLineString][5] \| [Polygon][6] \| [MultiPolygon][7])>)** any LineString or Polygon
+
+**Examples**
+
+```javascript
+var line1 = turf.lineString([[126, -11], [129, -21]]);
+var line2 = turf.lineString([[123, -18], [131, -14]]);
+var intersects = turf.lineIntersect(line1, line2);
+
+//addToMap
+var addToMap = [line1, line2, intersects]
+```
+
+Returns **[FeatureCollection][2]&lt;[Point][8]>** point(s) that intersect both
+
+[1]: https://tools.ietf.org/html/rfc7946#section-3.1
+
+[2]: https://tools.ietf.org/html/rfc7946#section-3.3
+
+[3]: https://tools.ietf.org/html/rfc7946#section-3.2
+
+[4]: https://tools.ietf.org/html/rfc7946#section-3.1.4
+
+[5]: https://tools.ietf.org/html/rfc7946#section-3.1.5
+
+[6]: https://tools.ietf.org/html/rfc7946#section-3.1.6
+
+[7]: https://tools.ietf.org/html/rfc7946#section-3.1.7
+
+[8]: https://tools.ietf.org/html/rfc7946#section-3.1.2
+
+<!-- This file is automatically generated. Please don't edit it directly:
+if you find an error, edit the source file (likely index.js), and re-run
+./scripts/generate-readmes in the turf project. -->
+
+---
+
+This module is part of the [Turfjs project](http://turfjs.org/), an open source
+module collection dedicated to geographic algorithms. It is maintained in the
+[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
+PRs and issues.
+
+### Installation
+
+Install this module individually:
+
+```sh
+$ npm install @turf/line-intersect
+```
+
+Or install the Turf module that includes it as a function:
+
+```sh
+$ npm install @turf/turf
+```

frontend/node_modules/@turf/line-intersect/dist/es/index.js

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+import { feature, featureCollection, point, } from "@turf/helpers";
+import { getCoords } from "@turf/invariant";
+import lineSegment from "@turf/line-segment";
+import { featureEach } from "@turf/meta";
+import rbush from "geojson-rbush";
+/**
+ * Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
+ *
+ * @name lineIntersect
+ * @param {GeoJSON} line1 any LineString or Polygon
+ * @param {GeoJSON} line2 any LineString or Polygon
+ * @returns {FeatureCollection<Point>} point(s) that intersect both
+ * @example
+ * var line1 = turf.lineString([[126, -11], [129, -21]]);
+ * var line2 = turf.lineString([[123, -18], [131, -14]]);
+ * var intersects = turf.lineIntersect(line1, line2);
+ *
+ * //addToMap
+ * var addToMap = [line1, line2, intersects]
+ */
+function lineIntersect(line1, line2) {
+    var unique = {};
+    var results = [];
+    // First, normalize geometries to features
+    // Then, handle simple 2-vertex segments
+    if (line1.type === "LineString") {
+        line1 = feature(line1);
+    }
+    if (line2.type === "LineString") {
+        line2 = feature(line2);
+    }
+    if (line1.type === "Feature" &&
+        line2.type === "Feature" &&
+        line1.geometry !== null &&
+        line2.geometry !== null &&
+        line1.geometry.type === "LineString" &&
+        line2.geometry.type === "LineString" &&
+        line1.geometry.coordinates.length === 2 &&
+        line2.geometry.coordinates.length === 2) {
+        var intersect = intersects(line1, line2);
+        if (intersect) {
+            results.push(intersect);
+        }
+        return featureCollection(results);
+    }
+    // Handles complex GeoJSON Geometries
+    var tree = rbush();
+    tree.load(lineSegment(line2));
+    featureEach(lineSegment(line1), function (segment) {
+        featureEach(tree.search(segment), function (match) {
+            var intersect = intersects(segment, match);
+            if (intersect) {
+                // prevent duplicate points https://github.com/Turfjs/turf/issues/688
+                var key = getCoords(intersect).join(",");
+                if (!unique[key]) {
+                    unique[key] = true;
+                    results.push(intersect);
+                }
+            }
+        });
+    });
+    return featureCollection(results);
+}
+/**
+ * Find a point that intersects LineStrings with two coordinates each
+ *
+ * @private
+ * @param {Feature<LineString>} line1 GeoJSON LineString (Must only contain 2 coordinates)
+ * @param {Feature<LineString>} line2 GeoJSON LineString (Must only contain 2 coordinates)
+ * @returns {Feature<Point>} intersecting GeoJSON Point
+ */
+function intersects(line1, line2) {
+    var coords1 = getCoords(line1);
+    var coords2 = getCoords(line2);
+    if (coords1.length !== 2) {
+        throw new Error("<intersects> line1 must only contain 2 coordinates");
+    }
+    if (coords2.length !== 2) {
+        throw new Error("<intersects> line2 must only contain 2 coordinates");
+    }
+    var x1 = coords1[0][0];
+    var y1 = coords1[0][1];
+    var x2 = coords1[1][0];
+    var y2 = coords1[1][1];
+    var x3 = coords2[0][0];
+    var y3 = coords2[0][1];
+    var x4 = coords2[1][0];
+    var y4 = coords2[1][1];
+    var denom = (y4 - y3) * (x2 - x1) - (x4 - x3) * (y2 - y1);
+    var numeA = (x4 - x3) * (y1 - y3) - (y4 - y3) * (x1 - x3);
+    var numeB = (x2 - x1) * (y1 - y3) - (y2 - y1) * (x1 - x3);
+    if (denom === 0) {
+        if (numeA === 0 && numeB === 0) {
+            return null;
+        }
+        return null;
+    }
+    var uA = numeA / denom;
+    var uB = numeB / denom;
+    if (uA >= 0 && uA <= 1 && uB >= 0 && uB <= 1) {
+        var x = x1 + uA * (x2 - x1);
+        var y = y1 + uA * (y2 - y1);
+        return point([x, y]);
+    }
+    return null;
+}
+export default lineIntersect;

frontend/node_modules/@turf/line-intersect/dist/es/package.json

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+{"type":"module"}

frontend/node_modules/@turf/line-intersect/dist/js/index.d.ts

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+import { Feature, FeatureCollection, LineString, MultiLineString, MultiPolygon, Point, Polygon } from "@turf/helpers";
+/**
+ * Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
+ *
+ * @name lineIntersect
+ * @param {GeoJSON} line1 any LineString or Polygon
+ * @param {GeoJSON} line2 any LineString or Polygon
+ * @returns {FeatureCollection<Point>} point(s) that intersect both
+ * @example
+ * var line1 = turf.lineString([[126, -11], [129, -21]]);
+ * var line2 = turf.lineString([[123, -18], [131, -14]]);
+ * var intersects = turf.lineIntersect(line1, line2);
+ *
+ * //addToMap
+ * var addToMap = [line1, line2, intersects]
+ */
+declare function lineIntersect<G1 extends LineString | MultiLineString | Polygon | MultiPolygon, G2 extends LineString | MultiLineString | Polygon | MultiPolygon>(line1: FeatureCollection<G1> | Feature<G1> | G1, line2: FeatureCollection<G2> | Feature<G2> | G2): FeatureCollection<Point>;
+export default lineIntersect;

frontend/node_modules/@turf/line-intersect/dist/js/index.js

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+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+var helpers_1 = require("@turf/helpers");
+var invariant_1 = require("@turf/invariant");
+var line_segment_1 = __importDefault(require("@turf/line-segment"));
+var meta_1 = require("@turf/meta");
+var geojson_rbush_1 = __importDefault(require("geojson-rbush"));
+/**
+ * Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
+ *
+ * @name lineIntersect
+ * @param {GeoJSON} line1 any LineString or Polygon
+ * @param {GeoJSON} line2 any LineString or Polygon
+ * @returns {FeatureCollection<Point>} point(s) that intersect both
+ * @example
+ * var line1 = turf.lineString([[126, -11], [129, -21]]);
+ * var line2 = turf.lineString([[123, -18], [131, -14]]);
+ * var intersects = turf.lineIntersect(line1, line2);
+ *
+ * //addToMap
+ * var addToMap = [line1, line2, intersects]
+ */
+function lineIntersect(line1, line2) {
+    var unique = {};
+    var results = [];
+    // First, normalize geometries to features
+    // Then, handle simple 2-vertex segments
+    if (line1.type === "LineString") {
+        line1 = helpers_1.feature(line1);
+    }
+    if (line2.type === "LineString") {
+        line2 = helpers_1.feature(line2);
+    }
+    if (line1.type === "Feature" &&
+        line2.type === "Feature" &&
+        line1.geometry !== null &&
+        line2.geometry !== null &&
+        line1.geometry.type === "LineString" &&
+        line2.geometry.type === "LineString" &&
+        line1.geometry.coordinates.length === 2 &&
+        line2.geometry.coordinates.length === 2) {
+        var intersect = intersects(line1, line2);
+        if (intersect) {
+            results.push(intersect);
+        }
+        return helpers_1.featureCollection(results);
+    }
+    // Handles complex GeoJSON Geometries
+    var tree = geojson_rbush_1.default();
+    tree.load(line_segment_1.default(line2));
+    meta_1.featureEach(line_segment_1.default(line1), function (segment) {
+        meta_1.featureEach(tree.search(segment), function (match) {
+            var intersect = intersects(segment, match);
+            if (intersect) {
+                // prevent duplicate points https://github.com/Turfjs/turf/issues/688
+                var key = invariant_1.getCoords(intersect).join(",");
+                if (!unique[key]) {
+                    unique[key] = true;
+                    results.push(intersect);
+                }
+            }
+        });
+    });
+    return helpers_1.featureCollection(results);
+}
+/**
+ * Find a point that intersects LineStrings with two coordinates each
+ *
+ * @private
+ * @param {Feature<LineString>} line1 GeoJSON LineString (Must only contain 2 coordinates)
+ * @param {Feature<LineString>} line2 GeoJSON LineString (Must only contain 2 coordinates)
+ * @returns {Feature<Point>} intersecting GeoJSON Point
+ */
+function intersects(line1, line2) {
+    var coords1 = invariant_1.getCoords(line1);
+    var coords2 = invariant_1.getCoords(line2);
+    if (coords1.length !== 2) {
+        throw new Error("<intersects> line1 must only contain 2 coordinates");
+    }
+    if (coords2.length !== 2) {
+        throw new Error("<intersects> line2 must only contain 2 coordinates");
+    }
+    var x1 = coords1[0][0];
+    var y1 = coords1[0][1];
+    var x2 = coords1[1][0];
+    var y2 = coords1[1][1];
+    var x3 = coords2[0][0];
+    var y3 = coords2[0][1];
+    var x4 = coords2[1][0];
+    var y4 = coords2[1][1];
+    var denom = (y4 - y3) * (x2 - x1) - (x4 - x3) * (y2 - y1);
+    var numeA = (x4 - x3) * (y1 - y3) - (y4 - y3) * (x1 - x3);
+    var numeB = (x2 - x1) * (y1 - y3) - (y2 - y1) * (x1 - x3);
+    if (denom === 0) {
+        if (numeA === 0 && numeB === 0) {
+            return null;
+        }
+        return null;
+    }
+    var uA = numeA / denom;
+    var uB = numeB / denom;
+    if (uA >= 0 && uA <= 1 && uB >= 0 && uB <= 1) {
+        var x = x1 + uA * (x2 - x1);
+        var y = y1 + uA * (y2 - y1);
+        return helpers_1.point([x, y]);
+    }
+    return null;
+}
+exports.default = lineIntersect;

frontend/node_modules/@turf/line-intersect/package.json

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+{
+  "name": "@turf/line-intersect",
+  "version": "6.5.0",
+  "description": "turf line-intersect module",
+  "author": "Turf Authors",
+  "contributors": [
+    "Denis Carriere <@DenisCarriere>",
+    "Daniel Pulido <@dpmcmlxxvi>"
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Turfjs/turf/issues"
+  },
+  "homepage": "https://github.com/Turfjs/turf",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/Turfjs/turf.git"
+  },
+  "funding": "https://opencollective.com/turf",
+  "publishConfig": {
+    "access": "public"
+  },
+  "keywords": [
+    "turf",
+    "geojson",
+    "gis",
+    "line",
+    "intersect"
+  ],
+  "main": "dist/js/index.js",
+  "module": "dist/es/index.js",
+  "exports": {
+    "./package.json": "./package.json",
+    ".": {
+      "import": "./dist/es/index.js",
+      "require": "./dist/js/index.js"
+    }
+  },
+  "types": "dist/js/index.d.ts",
+  "sideEffects": false,
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "bench": "ts-node bench.js",
+    "build": "npm-run-all build:*",
+    "build:es": "tsc --outDir dist/es --module esnext --declaration false && echo '{\"type\":\"module\"}' > dist/es/package.json",
+    "build:js": "tsc",
+    "docs": "node ../../scripts/generate-readmes",
+    "test": "npm-run-all test:*",
+    "test:tape": "ts-node -r esm test.js"
+  },
+  "devDependencies": {
+    "@turf/truncate": "^6.5.0",
+    "@types/tape": "*",
+    "benchmark": "*",
+    "load-json-file": "*",
+    "npm-run-all": "*",
+    "tape": "*",
+    "ts-node": "*",
+    "tslint": "*",
+    "typescript": "*",
+    "write-json-file": "*"
+  },
+  "dependencies": {
+    "@turf/helpers": "^6.5.0",
+    "@turf/invariant": "^6.5.0",
+    "@turf/line-segment": "^6.5.0",
+    "@turf/meta": "^6.5.0",
+    "geojson-rbush": "3.x"
+  },
+  "gitHead": "5375941072b90d489389db22b43bfe809d5e451e"
+}