build(deps-dev): bump svelte from 5.0.0-next.249 to 5.0.0-next.251

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 5.0.0-next.249 to 5.0.0-next.251.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/[email protected]/packages/svelte)

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

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

Author: dependabot[bot]

packages/frontend/package.json

@@ -35,7 +35,7 @@
     "jsdom": "^25.0.0",
     "postcss": "^8.4.47",
     "postcss-load-config": "^6.0.1",
-    "svelte": "5.0.0-next.249",
+    "svelte": "5.0.0-next.251",
     "svelte-fa": "^4.0.2",
     "svelte-select": "^5.8.3",
     "svelte-markdown": "^0.4.1",