build(deps-dev): bump svelte from 4.2.19 to 5.1.3 in /frontend

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 4.2.19 to 5.1.3.
- [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@5.1.3/packages/svelte)

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

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -29,7 +29,7 @@
 		"postcss": "^8.4.47",
 		"prettier": "^3.3.3",
 		"prettier-plugin-svelte": "^3.2.7",
-		"svelte": "^4.2.19",
+		"svelte": "^5.1.3",
 		"svelte-check": "^4.0.5",
 		"tailwindcss": "^3.4.14",
 		"typescript": "^5.6.3",