fix: the language selected is stored

Author: AshutoshKhadse23

lib/generated/l10n/zulip_localizations_uk.dart

@@ -731,4 +731,10 @@ class ZulipLocalizationsUk extends ZulipLocalizations {
 
   @override
   String get zulipAppTitle => 'Zulip';
+
+  @override
+  String get languageSettingsTitle => 'Language';
+
+  @override
+  String get systemDefaultLanguage => 'System default';
 }