build(deps-dev): bump svelte from 4.2.18 to 4.2.19

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 4.2.18 to 4.2.19.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/svelte@4.2.19/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/svelte@4.2.19/packages/svelte)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -258,7 +258,7 @@
  "npm-run-all": "4.1.5",
  "prettier": "3.3.3",
  "proxyquire": "2.1.3",
- "svelte": "4.2.18",
+ "svelte": "4.2.19",
  "symlink-dir": "6.0.1",
  "typescript": "5.5.4",
  "upem": "9.0.4",