chore(deps): bump the vite group across 1 directory with 2 updates

Bumps the vite group with 2 updates in the /frontend directory: [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `vite` from 7.3.2 to 8.0.16
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v8.0.16/packages/vite)

Updates `vitest` from 4.0.8 to 4.1.8
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.1.8/packages/vitest)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 8.0.16
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vite
- dependency-name: vitest
  dependency-version: 4.1.8
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: vite
...

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

Author: dependabot[bot]

frontend/package.json

@@ -52,8 +52,8 @@
     "prettier": "^3.6.2",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.46.3",
-    "vite": "^7.3.2",
-    "vitest": "^4.0.8"
+    "vite": "^8.0.16",
+    "vitest": "^4.1.8"
   },
   "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
 }