Only return the approved widget capabilities instead of accepting all requested capabilities

Author: dhenneke

src/stores/widgets/StopGapWidgetDriver.ts

@@ -34,7 +34,7 @@ import { IContent, IEvent, MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { Room } from "matrix-js-sdk/src/models/room";
 import { logger } from "matrix-js-sdk/src/logger";
 
-import { iterableDiff, iterableUnion } from "../../utils/iterables";
+import { iterableDiff } from "../../utils/iterables";
 import { MatrixClientPeg } from "../../MatrixClientPeg";
 import ActiveRoomObserver from "../../ActiveRoomObserver";
 import Modal from "../../Modal";
@@ -131,13 +131,11 @@ export class StopGapWidgetDriver extends WidgetDriver {
             }
         }
 
-        const allAllowed = new Set(iterableUnion(allowedSoFar, requested));
-
         if (rememberApproved) {
-            setRememberedCapabilitiesForWidget(this.forWidget, Array.from(allAllowed));
+            setRememberedCapabilitiesForWidget(this.forWidget, Array.from(allowedSoFar));
         }
 
-        return allAllowed;
+        return allowedSoFar;
     }
 
     public async sendEvent(