Kanban mobile drag PoC

[alsuren]

This PR includes:

• A fix for when the drag and drop can get into a bad state after the browser sends us a pointercancel event
• An implementation of drag and drop for mobile
  • kanban/mobile/controller/drag.ts is mostly copy-paste from kanban/pc/controller/drag.ts . Do you want me to DRY it out at all?
  • I have disabled the "mobile databases are readonly" logic from d90ff22 until someone can give me a bit more context (I have asked in #technical-discussion on discord). If you have a suggested fix for this, please leave a comment (or just push your proposed fix to my branch).
• A playwright test that exercises drag and drop on mobile and pc.

This is based on top of #9044 so it included a basic playwright test. I'm happy to merge this as two separate PRs or close the other one if you prefer.

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☁️ Nx Cloud last updated this comment at 2024-12-27 18:46:43 UTC

[Saul-Mirone]

Hi, thanks for your contribution. However, reagarding #9045, we don't accept new pr in this repo. If you still want to contribute, you can move your pr to https://github.com/toeverything/AFFiNE.
You can find most of the code in blocksuite folder.