fix(breakout-rooms) joining room with hand raised bug

Joining a room while hand is raised caused the local raised hand total to be wrong.
This is because when the local participant id changes, the old id is not cleared from the raisedHandQueue.

react/features/base/participants/reducer.js

@@ -84,6 +84,9 @@ ReducerRegistry.register('features/base/participants', (state = DEFAULT_STATE, a
         const { local } = state;
 
         if (local) {
+            if (action.newValue === 'local' && state.raisedHandsQueue.find(pid => pid.id === local.id)) {
+                state.raisedHandsQueue = state.raisedHandsQueue.filter(pid => pid.id !== local.id);
+            }
             state.local = {
                 ...local,
                 id: action.newValue