Update language labels in Russian locale

This commit updates the language labels in the Russian locale file (ru_RU.js) from Russian to their native representation. The languages affected are Simplified Chinese, Traditional Chinese (Taiwan), English, and Spanish. This enhances readability and user experience for speakers of these languages.

Author: hummer007

web/src/i18n/ru_RU.js

@@ -1,10 +1,10 @@
 export default {
     lang: {
         choose: 'Выбор языка/Language',
-        zhcn: 'Китайский (упрощенный)',
-        zhtw: 'Китайский (традиционный, Тайвань)',
-        en: 'Английский',
-        es: 'Испанский',
+        zhcn: '简体中文',
+        zhtw: '繁體中文(臺灣)',
+        en: 'English',
+        es: 'Español',
         ru: 'Русский',
         changeok: 'Успешно сменить язык',