ENH: request start when it stopped by app

Change-Id: I48b8692f87b834e0f96c7c19c4e8651ae7a8fc1e
Signed-off-by: Stone Li <stone.li@bambulab.com>

src/slic3r/GUI/Monitor.cpp

@@ -395,6 +395,7 @@ void MonitorPanel::update_all()
 
     //BBS check mqtt connections if user is login
     if (wxGetApp().is_user_login()) {
+        dev->check_pushing();
         // check mqtt connection and reconnect if disconnected
         try {
             m_agent->refresh_connection();