using a [babel plugin](https://gist.github.com/pengx17/49e24ae8a5a609bdaff122ee8c679d1c) to transform all var(--affine-xxx) to cssVar
Some issues:
- tried ast-grep but it seems to be not easy to add imports conditionally
- current work does not work well with ts with types because babel will strip them out
Added the ability to drag page items from the `all pages` view to the sidebar, including `favourites,` `collection` and `trash`. Page items in `favourites` and `collection` can also be dragged between each other. However, linked subpages cannot be dragged.
Additionally, an operation menu and ‘add’ button have been provided for the sidebar’s page items, enabling the addition of a subpage, renaming, deletion or removal from the sidebar.
On the code front, the `useSidebarDrag` hooks have been implemented for consolidating drag events. The functions `getDragItemId` and `getDropItemId` have been created, and they accept type and ID to obtain itemId.
https://github.com/toeverything/AFFiNE/assets/102217452/d06bac18-3c28-41c9-a7d4-72de955d7b11
