all these changes

frontend/node_modules/react-dnd-html5-backend/dist/NativeDragSources/NativeDragSource.js

@@ -0,0 +1,50 @@
+export class NativeDragSource {
+    initializeExposedProperties() {
+        Object.keys(this.config.exposeProperties).forEach((property)=>{
+            Object.defineProperty(this.item, property, {
+                configurable: true,
+                enumerable: true,
+                get () {
+                    // eslint-disable-next-line no-console
+                    console.warn(`Browser doesn't allow reading "${property}" until the drop event.`);
+                    return null;
+                }
+            });
+        });
+    }
+    loadDataTransfer(dataTransfer) {
+        if (dataTransfer) {
+            const newProperties = {};
+            Object.keys(this.config.exposeProperties).forEach((property)=>{
+                const propertyFn = this.config.exposeProperties[property];
+                if (propertyFn != null) {
+                    newProperties[property] = {
+                        value: propertyFn(dataTransfer, this.config.matchesTypes),
+                        configurable: true,
+                        enumerable: true
+                    };
+                }
+            });
+            Object.defineProperties(this.item, newProperties);
+        }
+    }
+    canDrag() {
+        return true;
+    }
+    beginDrag() {
+        return this.item;
+    }
+    isDragging(monitor, handle) {
+        return handle === monitor.getSourceId();
+    }
+    endDrag() {
+    // empty
+    }
+    constructor(config){
+        this.config = config;
+        this.item = {};
+        this.initializeExposedProperties();
+    }
+}
+
+//# sourceMappingURL=NativeDragSource.js.map