message: Attach plain text to drags from command frame; allow drags to outside the app
diff: @@ -581,6 +581,7 @@ export class EmbeddedViewer extends ViewerElement implements CommandPaletteReque
  }
  ev.dataTransfer.setData(FrameMimeType.MIMETYPE, "" + this.getTag());
  + ev.dataTransfer.setData("text/plain", this.getText());
  ev.dataTransfer.setDragImage(target, -10, -10);
  ev.dataTransfer.effectAllowed = 'move';
  ev.dataTransfer.dropEffect = 'move';
  