chore(deps-dev): bump tailwindcss from 4.2.1 to 4.2.2 in /frontend (#119)

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 4.2.1 to 4.2.2.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/commits/v4.2.2/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.2.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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frontend/package.json

@@ -60,7 +60,7 @@
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
     "globals": "^16.5.0",
-    "tailwindcss": "^4.2.1",
+    "tailwindcss": "^4.2.2",
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.48.0",
     "vite": "^7.3.1"