Bump svelte from 3.53.1 to 4.2.19 in /ui

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 3.53.1 to 4.2.19.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/[email protected]/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/[email protected]/packages/svelte)

---
updated-dependencies:
- dependency-name: svelte
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>