fix(remote-control): when multistream is enabled

The remote control controller events were sent for the camera
participant instead of the screen sharing one.

react/features/remote-control/subscriber.js

@@ -1,5 +1,10 @@
 // @flow
 
+import {
+    getParticipantById,
+    getVirtualScreenshareParticipantByOwnerId,
+    getVirtualScreenshareParticipantOwnerId
+} from '../base/participants';
 import { StateListenerRegistry } from '../base/redux';
 
 import { resume, pause } from './actions';
@@ -17,6 +22,22 @@ StateListenerRegistry.register(
             return undefined;
         }
 
+        const participant = getParticipantById(state, participantId);
+
+        if (participant?.isVirtualScreenshareParticipant) {
+            // multistream support is enabled and the user has selected the desktop sharing thumbnail.
+            const id = getVirtualScreenshareParticipantOwnerId(participantId);
+
+            return id === controlled;
+        }
+
+        const virtualParticipant = getVirtualScreenshareParticipantByOwnerId(state, participantId);
+
+        if (virtualParticipant) { // multistream is enabled and the user has selected the camera thumbnail.
+            return false;
+
+        }
+
         return controlled === participantId;
     },
     /* listener */ (isControlledParticipantOnStage, { dispatch }) => {