None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).
`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.
Everything appears to work fine.
1. Add "grabbing" cursor while dragging items:

2. Make project board only drag via their header, not via their whole
body.

3. Fix some cursor problems in projects
4. Move shared options into `createSortable`.
Previously, `sortablejs` was imported twice, once synchronously and once
asynchronously, leading to webpack creating duplicate output code (once
in the index bundle, and once in a separate chunk). Fix this by always
asynchronously importing it. This was one of the build warnings observed
when trying to build with vite.