feat(i18n): Add Turkish (tr-TR) localization (#3498)

* Add Turkish language support

Added Turkish (tr) translations to the application by creating a new locale file `tr.json` and updating the language options in `setting-verge-basic.tsx` and `i18n.ts` to include Turkish.

* Update Turkish translations for proxy terminology

Revised Turkish translations in `tr.json` to replace 'Proxy' with 'Vekil' for consistency and clarity. This change affects various labels, descriptions, and messages throughout the file.

src/components/setting/setting-verge-basic.tsx

@@ -38,6 +38,7 @@ const languageOptions = Object.entries(languages).map(([code, _]) => {
     id: "Bahasa Indonesia",
     ar: "العربية",
     ko: "한국어",
+    tr: "Türkçe",
   };
   return { code, label: labels[code] };
 });