Notification & Camera

- Notification when user is first and not focus on the tab
- Camera focus when user is in discussion circle and back on tab with previous config camera settings
- Camera stay blur if user is in discussion circle and not back on the tab

# Conflicts:
#	front/src/WebRtc/MediaManager.ts

front/src/WebRtc/SimplePeer.ts

@@ -158,6 +158,11 @@ export class SimplePeer {
                 this.sendLocalScreenSharingStreamToUser(user.userId);
             }
         });
+
+        //Create a notification for first user in circle discussion
+        if(this.PeerConnectionArray.size === 0){
+            mediaManager.createNotification(user.name??'');
+        }
         this.PeerConnectionArray.set(user.userId, peer);
 
         for (const peerConnectionListener of this.peerConnectionListeners) {