refactor(settings): update SettingsLanguageChanged event language type

- Change SettingsLanguageChanged.language type from AppLanguage to Language
- Update props list to reflect the new type

Author: fulleni

lib/settings/bloc/settings_event.dart

@@ -97,8 +97,7 @@ final class SettingsLanguageChanged extends SettingsEvent {
   /// {@macro settings_language_changed}
   const SettingsLanguageChanged(this.language);
 
-  /// The new language.
-  final AppLanguage language;
+  final Language language;
 
   @override
   List<Object?> get props => [language];