build(deps-dev): bump vitest from 4.1.0 to 4.1.1 in /frontend

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.1.1/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 4.1.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -29,6 +29,6 @@
     "svelte-check": "4.4.5",
     "typescript": "5.9.3",
     "vite": "8.0.1",
-    "vitest": "4.1.0"
+    "vitest": "4.1.1"
   }
 }