Add support for playing a sound when the user exits a call. (#2860)

* Refactor to use AudioContext

* Remove unused audio format.

* Reduce update frequency for volume

* Port to useAudioContext

* Port reactionaudiorenderer to useAudioContext

* Integrate raise hand sound into call event renderer.

* Simplify reaction sounds

* only play one sound per reaction type

* Start to build out tests

* fixup tests / comments

* Fix reaction sound

* remove console line

* Remove another debug line.

* fix lint

* Use testing library click

* lint

* Add support for playing a sound when the user exits a call.

* Port GroupCallView to useAudioContext

* Remove debug bits.

* asyncify

* lint

* lint

* lint

* tidy

* Add test for group call view

* Test widget mode too.

* fix ?.

* Format

* Lint

* Lint

---------

Co-authored-by: Hugh Nimmo-Smith <hughns@element.io>

src/utils/test.ts

@@ -6,7 +6,7 @@ Please see LICENSE in the repository root for full details.
 */
 import { map, type Observable, of, type SchedulerLike } from "rxjs";
 import { type RunHelpers, TestScheduler } from "rxjs/testing";
-import { expect, vi } from "vitest";
+import { expect, vi, vitest } from "vitest";
 import {
   type RoomMember,
   type Room as MatrixRoom,
@@ -258,6 +258,12 @@ export class MockRTCSession extends TypedEventEmitter<
   MatrixRTCSessionEvent,
   MatrixRTCSessionEventHandlerMap
 > {
+  public readonly statistics = {
+    counters: {},
+  };
+
+  public leaveRoomSession = vitest.fn().mockResolvedValue(undefined);
+
   public constructor(
     public readonly room: Room,
     private localMembership: CallMembership,
@@ -266,6 +272,10 @@ export class MockRTCSession extends TypedEventEmitter<
     super();
   }
 
+  public isJoined(): true {
+    return true;
+  }
+
   public withMemberships(
     rtcMembers: Observable<Partial<CallMembership>[]>,
   ): MockRTCSession {