message: fix removed pixelRatio
diff: @@ -217,7 +217,7 @@ export default class MImageBody extends React.Component {
  const info = content.info;
  if (
  this._isGif() ||
  - pixelRatio === 1.0 ||
  + window.devicePixelRatio === 1.0 ||
  (!info || !info.w || !info.h || !info.size)
  ) {
  return media.getThumbnailOfSourceHttp(thumbWidth, thumbHeight);
  