message: style(ShareSheet): update qrcode icon
diff: @@ -17,7 +17,7 @@ const PRESET_ICONS = [
  function getIconURL(icon) {
  if (PRESET_ICONS.indexOf(icon) !== -1) {
  - return `https://img.yzcdn.cn/vant/share-icon-${icon}.png`;
  + return `https://img.yzcdn.cn/vant/share-sheet-${icon}.png`;
  }
  return icon;
  }
  