Implement Voice Broadcast recording (#9307)

* Implement VoiceBroadcastRecording

* Implement PR feedback

* Add voice broadcast recording stores

* Refactor startNewVoiceBroadcastRecording

* Refactor VoiceBroadcastRecordingsStore to VoiceBroadcastRecording

* Rename VoiceBroadcastRecording to VoiceBroadcastRecorder

* Return remaining chunk on stop

* Extract createVoiceMessageContent

* Implement recording

* Replace dev value with config

* Fix clientInformation-test

* Refactor VoiceBroadcastRecording

* Fix VoiceBroadcastRecording types

* Re-order getter

* Mark voice_broadcast config as optional

* Merge voice-broadcast modules

* Remove underscore props

* Add Optional types

* Add return types everywhere

* Remove test casts

* Add magic comments

* Trigger CI

* Switch VoiceBroadcastRecorder to TypedEventEmitter

* Trigger CI

* Add voice broadcast chunk event content

Co-authored-by: Travis Ralston <travisr@matrix.org>

test/voice-broadcast/utils/startNewVoiceBroadcastRecording-test.ts

@@ -109,6 +109,7 @@ describe("startNewVoiceBroadcastRecording", () => {
             return {
                 infoEvent,
                 client,
+                start: jest.fn(),
             } as unknown as VoiceBroadcastRecording;
         });
     });
@@ -120,6 +121,7 @@ describe("startNewVoiceBroadcastRecording", () => {
             expect(ok).toBe(true);
             expect(mocked(room.off)).toHaveBeenCalledWith(RoomStateEvent.Events, roomOnStateEventsCallback);
             expect(recording.infoEvent).toBe(infoEvent);
+            expect(recording.start).toHaveBeenCalled();
             done();
         });