Dependencies: Bump @sveltejs/vite-plugin-svelte

[JReinhold]

I believe @sveltejs/vite-plugin-svelte v2.4.1 has a bug with TypeScript types and @sveltejs/vite-plugin-svelte-inspector that got fixed in v2.4.2.

The bug makes our internal TS checks fail, but nothing on the user end AFAIK.

Another solution would be to set skipLibCheck in TS configs, and I think we should do that in the whole repo, but that's another discussion.

This fix was already made to the 7.0.24 release branch, this just copies that fix.

What I did

How to test

Checklist

• Make sure your changes are tested (stories and/or unit, integration, or end-to-end tests)
• Make sure to add/update documentation regarding your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Maintainers

• If this PR should be tested against many or all sandboxes,
  make sure to add the ci:merged or ci:daily GH label to it.
• Make sure this PR contains one of the labels below.

["cleanup", "BREAKING CHANGE", "feature request", "bug", "documentation", "maintenance", "dependencies", "other"]

[shilman]

LGTM. Why didn't we make this change on next first and patch it back, which is the typical workflow?

[JReinhold]

Why didn't we make this change on next first and patch it back, which is the typical workflow?

@shilman this was a fix we did during the 7.0.24 release to unblock it, where we had to fix an S1 during the team meetup and it was all a bit chaotic, so we did the fix directly in the versioning branch.