fix: lobby timer

src/game/server/Lobby.cpp

@@ -54,6 +54,7 @@ void Lobby::OnPlayerJoin(std::uint8_t playerID){
     if (m_Players.size() == 2){ // start timer if a second player join the match
         m_StartTimerTime = utils::getTime();
         m_Timer.reset();
+        sendTimeRemaining();
     }
 }