saveSettingsToLocalFile function
Implementation
Future<String?> saveSettingsToLocalFile(AppSettings appSettings) async {
if (kIsWeb)
return null;
var directory = await getApplicationDocumentsDirectory();
var directoryPath = directory.path;
var _file = File('$directoryPath/settings.json');
var _data = json.encode(appSettings.toJson());
await _file.writeAsString(_data);
}