fix: Add support for synchronously reseting go2rtc sessions (#2478)

This is part 1 of
https://docs.google.com/document/d/1zbHYWqulEUaNLeX0fK3rfIiLugMlCQo_SFg3hcgiRRw/edit?tab=t.0
.

There is a significant chance this will improve issues people have been
experiencing with poorly designed doorbells that can only open a single
stream at a time.

src/components/live/providers/go2rtc/video-rtc.d.ts

@@ -35,5 +35,6 @@ export class VideoRTC extends HTMLElement {
   microphoneStream: MediaStream | null;
   targetID: string | null;
   reconnect();
+  reset(): void;
   setControls(controls: boolean): void;
 }