build(deps-dev): bump tailwindcss from 4.1.10 to 4.1.11 in /frontend

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 4.1.10 to 4.1.11.
- [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/v4.1.11/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.1.11
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

frontend/package.json

@@ -66,7 +66,7 @@
     "postcss": "^8.4.49",
     "prettier": "^3.5.3",
     "prettier-plugin-tailwindcss": "^0.6.13",
-    "tailwindcss": "^4.1.10",
+    "tailwindcss": "^4.1.11",
     "typescript": "^5.8.3",
     "vite": "^6.3.5",
     "vite-plugin-svgr": "^4.3.0"