Bump vitest from 4.1.11 to 5.0.0 in /frontend

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 4.1.11 to 5.0.0.
- [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/v5.0.0/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 5.0.0
  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

@@ -30,7 +30,7 @@
     "puppeteer": "^25.5.0",
     "vite": "^8.2.2",
     "vite-plugin-compression2": "^2.5.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.0"
   },
   "dependencies": {
     "@blockly/field-colour": "^13.2.0",