Rework saving to config

lib/main.dart

@@ -1325,47 +1325,7 @@ class _ModManagerPageState extends State<ModManagerPage> {
         'Saving mod load order for ${_activeMods.length} active mods to $configPath',
       );
 
-      // Save the mod list to the XML config file
-      final file = File(configPath);
-      final buffer = StringBuffer();
-
-      buffer.writeln('<?xml version="1.0" encoding="utf-8"?>');
-      buffer.writeln('<ModsConfigData>');
-      buffer.writeln('  <version>1</version>');
-
-      // Write active mods
-      buffer.writeln('  <activeMods>');
-      for (final mod in _activeMods) {
-        buffer.writeln('    <li>${mod.id}</li>');
-        logger.info('  - Adding mod to config: ${mod.name} (${mod.id})');
-      }
-      buffer.writeln('  </activeMods>');
-
-      // Count expansions
-      final expansions = _availableMods.where((m) => m.isExpansion).toList();
-      logger.info('Found ${expansions.length} expansions to include in config');
-
-      // Add known expansions
-      buffer.writeln('  <knownExpansions>');
-      for (final mod in expansions) {
-        buffer.writeln('    <li>${mod.id}</li>');
-        logger.info('  - Adding expansion to config: ${mod.name} (${mod.id})');
-      }
-      buffer.writeln('  </knownExpansions>');
-
-      buffer.writeln('</ModsConfigData>');
-
-      // Ensure directory exists
-      final directory = Directory(configRoot);
-      if (!directory.existsSync()) {
-        logger.info('Creating config directory: $configRoot');
-        directory.createSync(recursive: true);
-      }
-
-      // Write to file
-      logger.info('Writing config file to $configPath');
-      await file.writeAsString(buffer.toString());
-      logger.info('Successfully saved mod configuration');
+      modManager.saveToConfig(LoadOrder(_activeMods));
 
       setState(() {
         _isLoading = false;