logout method
Implementation
Future<bool> logout({required String url, Dio? dio}) async {
  if (url.isEmpty) {
    throw ArgumentError('URL cannot be empty');
  }
  final options = Options(
    method: r'GET',
  );
  var dioClient = dio ?? Dio();
  try {
  final response = await dioClient.request<Object>(
    url,
    options: options,
  );
  return response.statusCode == 200;
  } on DioException {
    return false;
  }
}