This is annoyingly verbose, but will let us still get PRs for minor and
patch updates separately from major updates, so we can continue to
benefit from bugfixes without having to adopt breaking changes.
Also adds a jotai update group
Until we split up the rest of the codebase into workspaces, having a
separate dependabot group for docsite won't work since the root rule
will always conflict
## Summary
We are moving our docsite to this repo for better coordination.
## What's changed?
- The docsite codebase is now in docs/
- The docsite will replace storybook as the published GitHub Pages site
for this repo
- Storybook will now be hosted at https://docs.waveterm.dev/storybook
- A new CI workflow will validate any changes to Storybook or the
docsite
- A combined CD workflow will build and deploy Storybook and the docsite
as a single artifact
- The Build Helper workflow will now build an embedded version of the
docsite before building the app, ensuring the docsite version it has is
always the latest
