Indent xml for saving

lib/mod_troubleshooter_widget.dart

@@ -171,9 +171,9 @@ class _ModTroubleshooterWidgetState extends State<ModTroubleshooterWidget> {
     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
         content: Text(
-          '${_loadOrder.order.length} mods prepared for testing. Please use Save button in the Mods tab to save config.',
+          '${_loadOrder.order.length} mods have been successfully saved to the configuration.',
         ),
-        backgroundColor: Colors.orange,
+        backgroundColor: Colors.green,
         duration: const Duration(seconds: 4),
       ),
     );