message: Fix snapped drops to the middle area for frames
diff: @@ -346,7 +346,7 @@ export class MainWebUi extends ThemeableElementBase implements keybindingmanager
  if (detail.mimeType === ElementMimeType.MIMETYPE) {
  this._handleElementDroppedEvent(target, target.getSelectedIndex(), detail.dropData);
  } else if (detail.mimeType === FrameMimeType.MIMETYPE) {
  - this._handleElementDroppedEvent(target, target.getSelectedIndex(), detail.dropData);
  + this._handleFrameDroppedEvent(target, target.getSelectedIndex(), detail.dropData);
  }
  }
  }
  