Remove locale name provider

lib/core/localization/locale_extensions.dart

@@ -1,4 +1,3 @@
-import 'package:flutter_localized_locales/flutter_localized_locales.dart';
 import 'package:hiddify/gen/fonts.gen.dart';
 import 'package:hiddify/gen/translations.g.dart';
 
@@ -6,8 +5,12 @@ extension AppLocaleX on AppLocale {
   String get preferredFontFamily =>
       this == AppLocale.fa ? FontFamily.shabnam : "";
 
-  String get localeName =>
-      LocaleNamesLocalizationsDelegate
-          .nativeLocaleNames[flutterLocale.toString()] ??
-      name;
+  String get localeName => switch (flutterLocale.toString()) {
+        "en" => "English",
+        "fa" => "فارسی",
+        "ru" => "Русский",
+        "zh" || "zh_CN" => "中文",
+        "tr" => "Türkçe",
+        _ => "Unknown",
+      };
 }