* Add new folder button
* Add tree util test
* nit
* Support empty folder in node library
* Drag to bookmark folder
* Use bookmark icon for bookmark folder
* Highlight on dragover
* nit
* Auto-expand on item added
* Extract bookmark system as store
* Add context menu on bookmark folder
* Add editable text
* Fix reactivity
* Plumb editable text
* refactor
* Rename node
* Fix focus
* Prevent name collision
* nit
* Add new folder
* nested folder support
* Change drag behavior
* Add basic playwright tests
* nit
* Target tree-node-content instead of tree-node
