Check out my Quasar App Extension QDraggableTree! It allows you to drag and drop the nodes in the Quasar QTree.
Live preview: https://quasar-draggable-tree.netlify.com/docs
Any feedback will be greatly appreciated!
If this helps you, and you want to support it, you can contribute through GitHub Sponsorship program.
Or through Patreon: https://www.patreon.com/mayank_patel_foss