message: Storing userId instead of peerId (for future purposes)
diff: @@ -258,7 +258,7 @@ export class Peer implements IPeer {
  const roomUsers: MinPeerData[] = json;
  - room.users = roomUsers.map(it => it.peerId);
  + room.users = roomUsers.map(it => it.userId);
  this.updateKnownPeersWithRoom(room, roomUsers);
  