chore(deps-dev): bump svelte from 5.0.0-next.251 to 5.0.0-next.254

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 5.0.0-next.251 to 5.0.0-next.254.
- [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/svelte@5.0.0-next.254/packages/svelte)

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

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

package.json

@@ -60,7 +60,7 @@
     "lint-staged": "^15.2.10",
     "prettier": "^3.3.3",
     "prettier-plugin-svelte": "^3.2.6",
-    "svelte": "5.0.0-next.251",
+    "svelte": "5.0.0-next.254",
     "svelte-check": "^4.0.2",
     "typescript": "5.6.2",
     "vite": "^5.4.6",

packages/frontend/package.json

@@ -45,7 +45,7 @@
     "postcss-load-config": "^6.0.1",
     "prettier": "^3.3.3",
     "prettier-plugin-svelte": "^3.2.6",
-    "svelte": "5.0.0-next.251",
+    "svelte": "5.0.0-next.254",
     "svelte-fa": "^4.0.2",
     "svelte-markdown": "^0.4.1",
     "svelte-preprocess": "^6.0.2",