fix(admin-ui-plugin): Fix default languages list

packages/admin-ui-plugin/src/constants.ts

@@ -10,6 +10,7 @@ export const defaultAvailableLanguages = [
     LanguageCode.en,
     LanguageCode.es,
     LanguageCode.pl,
-    LanguageCode.zh,
+    LanguageCode.zh_Hans,
+    LanguageCode.zh_Hant,
     LanguageCode.pt_BR,
 ];