chore(deps-dev): bump svelte from 5.23.2 to 5.25.6

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 5.23.2 to 5.25.6.
- [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-version: 5.25.6
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

packages/frontend/package.json

@@ -46,7 +46,7 @@
     "moment": "^2.30.1",
     "prettier": "^3.5.3",
     "prettier-plugin-svelte": "^3.3.3",
-    "svelte": "^5.23.2",
+    "svelte": "^5.25.6",
     "svelte-fa": "^4.0.3",
     "svelte-markdown": "^0.4.1",
     "svelte-preprocess": "^6.0.3",