all these changes

frontend/node_modules/@turf/envelope/dist/es/index.js

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+import bbox from '@turf/bbox';
+import bboxPolygon from '@turf/bbox-polygon';
+
+/**
+ * Takes any number of features and returns a rectangular {@link Polygon} that encompasses all vertices.
+ *
+ * @name envelope
+ * @param {GeoJSON} geojson input features
+ * @returns {Feature<Polygon>} a rectangular Polygon feature that encompasses all vertices
+ * @example
+ * var features = turf.featureCollection([
+ *   turf.point([-75.343, 39.984], {"name": "Location A"}),
+ *   turf.point([-75.833, 39.284], {"name": "Location B"}),
+ *   turf.point([-75.534, 39.123], {"name": "Location C"})
+ * ]);
+ *
+ * var enveloped = turf.envelope(features);
+ *
+ * //addToMap
+ * var addToMap = [features, enveloped];
+ */
+function envelope(geojson) {
+  return bboxPolygon(bbox(geojson));
+}
+
+export default envelope;

frontend/node_modules/@turf/envelope/dist/es/package.json

@@ -0,0 +1 @@
+{"type":"module"}