Some changes due to React 18 useEffect development-time behaviour.
Some e2e timing bugs caught.

This should have no user-relevant changes so no rush to release it.
We'll let it sit on beta for a while and may combine with a switch to Vite before release.

This doesn't fix e2e issues but is likely a more useful baseline.

- Catch another error case that can happen due to LS dispose
- Bump timeouts while we're looking into issues so we can be sure it's
  not just slow

- CRA/Craco -> Vite + Vitest + eslint 
- TypeScript 4->5

npm audit issues are now at 0 🎉
bundle size slightly smaller with fewer total requests and quicker load time in Chrome

Notable changes:
- Use a Web Worker bundle per language to workaround Vite/Safari 14 limitations
    - I also renamed the main worker-side file to make it clearer what was what as I found it confusing to come back to.
- Fixed a dev-only API tab initialisation issue found by e2e tests
- Fixed a layout shift issue spotted in review that turned out to be due to useMediaQuery behaviour changes in the recent Chakra UI upgrade
- Adding updated eslint config caught a missing await in storage.ts. Should only have been significant when deleting files that don't exist which we never intend to do.

We'll run this on beta for a while (along with the Chakra UI upgrade) before considering a release.

Equivalent to before, just this is a build from main after the changes
for Vite.

This makes more sense than using the CMS as it's not really content in
the same way as everything else.

Retain the current default. The intent is to allow folks to provide alternative content.

See #1148

Searches like "display.scroll" will now return the relevant API section in the results.
It might be nice if these were highlighted but there's not even contiguous text to highlight.

This moves the ref for the parent container into the useEffect call
instead of copying it outside of the useEffect.

We originally forked it for a Korean PR which has long been merged.

Requires a translate flag.

Foundation builds only so we don't get confusing contributions to our Crowdin from forks that might have made text changes. Open to discussing making the Crowdin project configurable if useful to forks.

When the flag is present, change language id to lol and append CrowdIn JIPT script to header.

Related PRs (now merged)
Pyright - microbit-foundation/pyright#32
Stubs - microbit-foundation/micropython-microbit-stubs#100