Add language: Interlingua (#7715)

* Add language: Interlingua

* Add ia entry in dates

src/locale/languages.ts

@@ -21,6 +21,7 @@ export enum AppLanguage {
   gl = 'gl',
   hi = 'hi',
   hu = 'hu',
+  ia = 'ia',
   id = 'id',
   it = 'it',
   ja = 'ja',
@@ -64,6 +65,7 @@ export const APP_LANGUAGES: AppLanguageConfig[] = [
   {code2: AppLanguage.gl, name: 'Galego – Galician'},
   {code2: AppLanguage.hi, name: 'हिंदी – Hindi'},
   {code2: AppLanguage.hu, name: 'magyar – Hungarian'},
+  {code2: AppLanguage.ia, name: 'Interlingua'},
   {code2: AppLanguage.id, name: 'Bahasa Indonesia – Indonesian'},
   {code2: AppLanguage.it, name: 'Italiano – Italian'},
   {code2: AppLanguage.ja, name: '日本語 – Japanese'},