Update video rooms to new design specs (#8207)

* Remove radio component

* "Voice room" → "video room"

* Remove interactivity from video room tiles

* Update connection state when joining via widget

* Simplify room header buttons for video rooms

* Split out video room creation into a separate menu option

* Simplify room options for video rooms

* Update video room tile layout

* Tell the Jitsi widget whether it's a video channel

* Update tests

* "Voice" → "video" in more places

* Fix tests

* Re-add frame to immersive Jitsi widgets

* Comment ack

* Make updateDevices more readable

* Type FacePile

test/test-utils/video.ts

@@ -0,0 +1,39 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { EventEmitter } from "events";
+
+import VideoChannelStore, { VideoChannelEvent } from "../../src/stores/VideoChannelStore";
+
+class StubVideoChannelStore extends EventEmitter {
+    private _roomId: string;
+    public get roomId(): string { return this._roomId; }
+
+    public connect = (roomId: string) => {
+        this._roomId = roomId;
+        this.emit(VideoChannelEvent.Connect);
+    };
+    public disconnect = () => {
+        this._roomId = null;
+        this.emit(VideoChannelEvent.Disconnect);
+    };
+}
+
+export const stubVideoChannelStore = (): StubVideoChannelStore => {
+    const store = new StubVideoChannelStore();
+    jest.spyOn(VideoChannelStore, "instance", "get").mockReturnValue(store as unknown as VideoChannelStore);
+    return store;
+};