build(deps-dev): bump svelte from 3.59.2 to 5.39.9

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 3.59.2 to 5.39.9.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG-pre-5.md)
- [Commits](https://github.com/sveltejs/svelte/commits/svelte@5.39.9/packages/svelte)

---
updated-dependencies:
- dependency-name: svelte
  dependency-version: 5.39.9
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Author: dependabot[bot]