message: Fix watching settings
  An accidental variable shadowing was preventing setting watcher
  callbacks from being fired.
diff: @@ -63,8 +63,7 @@ export class WatchManager {
  if (!inRoomId) {
  // Fire updates to all the individual room watchers too, as they probably care about the change higher up.
  - const callbacks = Array.from(roomWatchers.values()).flat(1);
  - callbacks.push(...callbacks);
  + callbacks.push(...Array.from(roomWatchers.values()).flat(1));
  } else if (roomWatchers.has(IRRELEVANT_ROOM)) {
  callbacks.push(...roomWatchers.get(IRRELEVANT_ROOM));
  }
  