Idle Client Timeout Functionality

Added the functionality client side to log users out of servers if they
are idle for more than 1 hour without joining either a game or room.
Sending a message (room/game/private) or performing a game action.

cockatrice/src/tab_message.cpp

@@ -99,6 +99,7 @@ void TabMessage::sendMessage()
     client->sendCommand(pend);
     
     sayEdit->clear();
+    emit notIdle();
 }
 
 void TabMessage::messageSent(const Response &response)