Show the window right away

If yum holds the lock, we may otherwise ending up not
showing anything for minutes, which is just broken.

src/gs-application.c

@@ -197,8 +197,7 @@ gs_application_startup (GApplication *application)
 	window = gs_shell_setup (app->shell, app->plugin_loader, app->cancellable);
 	gtk_application_add_window (GTK_APPLICATION (app), window);
 
-	g_signal_connect_swapped (app->shell, "loaded",
-				  G_CALLBACK (gtk_window_present), window);
+        gtk_window_present (window);
 }
 
 static void