feat(i18n): add Luxembourgish language support (#2671)

src/context/LanguageContext.tsx

@@ -63,6 +63,10 @@ export const availableLanguages: AvailableLanguageObject = {
     code: 'it',
     display: 'Italiano',
   },
+  lb: {
+    code: 'lb',
+    display: 'Lëtzebuergesch',
+  },
   lt: {
     code: 'lt',
     display: 'Lietuvių',

src/pages/_app.tsx

@@ -65,6 +65,8 @@ const loadLocaleData = (locale: AvailableLocale): Promise<any> => {
       return import('../i18n/locale/ja.json');
     case 'ko':
       return import('../i18n/locale/ko.json');
+    case 'lb':
+      return import('../i18n/locale/lb.json');
     case 'lt':
       return import('../i18n/locale/lt.json');
     case 'nb-NO':