refresh static method

Implementation

static Future<UNetworkStatus> refresh() async {
  await init();
  final Map<String, Object?>? map = kIsWeb ? UWebBridge.networkStatus() : await UDeviceChannel.network();
  if (map != null && map.isNotEmpty) {
    _grace?.cancel();
    _grace = null;
    _set(UNetworkStatus.fromMap(map));
  }
  return status;
}