Bump vitest from 3.0.9 to 3.1.1 in /src/Frontend

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 3.0.9 to 3.1.1.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v3.1.1/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 3.1.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/Frontend/package-lock.json

@@ -67,7 +67,7 @@
     "typescript-eslint": "^8.29.0",
     "vite": "^6.2.4",
     "vite-plugin-checker": "^0.9.1",
-    "vitest": "^3.0.9",
+    "vitest": "^3.1.1",
     "vue-tsc": "^2.2.8"
   },
   "overrides": {