fix: wrong barrel file exports

Author: fulleni

lib/src/models/user-preferences/user_app_preferences.dart

@@ -1,2 +1 @@
-export 'user_app_preferences.dart';
 export 'user_content_preferences.dart';

lib/src/models/user-preferences/user_preferences.dart

@@ -1,5 +1,5 @@
 import 'package:equatable/equatable.dart';
-import 'package:ht_shared/src/models/user-settings/app_settings.dart';
+import 'package:ht_shared/src/models/user-settings/user_settings.dart';
 
 import 'package:json_annotation/json_annotation.dart';
 

lib/src/models/user-settings/app_settings.dart

@@ -2,7 +2,6 @@ export 'app_accent_theme.dart';
 export 'app_base_theme.dart';
 export 'app_font_weight.dart';
 export 'app_language.dart';
-export 'app_settings.dart';
 export 'app_text_scale_factor.dart';
 export 'display_settings.dart';
 export 'user_app_settings.dart';