GUI: move pix from data/gui/misc/ to ressource and delete double entrys

src/gui/qt/gamelobbydialog/gamelobbydialogimpl.cpp

@@ -475,7 +475,7 @@ void gameLobbyDialogImpl::updateGameItem(QList <QStandardItem*> itemList, unsign
         }
 
 	if (info.isPasswordProtected) {
-                itemList.at(4)->setIcon(QIcon(myAppDataPath+"gfx/gui/misc/lock.png"));
+                itemList.at(4)->setIcon(QIcon(":/gfx/lock.png"));
                 itemList.at(4)->setData(" ", Qt::DisplayRole);
                 itemList.at(4)->setData("private", 16);
 	}