message: change image rendering size max height
diff: @@ -362,7 +362,7 @@ export default class MImageBody extends React.Component {
  }
  // The maximum height of the thumbnail as it is rendered as an <img>
  - const maxHeight = Math.min(this.props.maxImageHeight || 600, infoHeight);
  + const maxHeight = Math.min(this.props.maxImageHeight || 240, infoHeight);
  // The maximum width of the thumbnail, as dictated by its natural
  // maximum height.
  const maxWidth = infoWidth * maxHeight / infoHeight;
  