feat(i18n): add Vietnamese language support (#2670)

src/context/LanguageContext.tsx

@@ -135,6 +135,10 @@ export const availableLanguages: AvailableLanguageObject = {
     code: 'uk',
     display: 'українська мова',
   },
+  vi: {
+    code: 'vi',
+    display: 'Tiếng Việt',
+  },
   'zh-TW': {
     code: 'zh-TW',
     display: '繁體中文',

src/pages/_app.tsx

@@ -91,6 +91,8 @@ const loadLocaleData = (locale: AvailableLocale): Promise<any> => {
       return import('../i18n/locale/tr.json');
     case 'uk':
       return import('../i18n/locale/uk.json');
+    case 'vi':
+      return import('../i18n/locale/vi.json');
     case 'zh-CN':
       return import('../i18n/locale/zh_Hans.json');
     case 'zh-TW':