Bump tailwindcss from 3.4.1 to 3.4.15 in /frontend

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss) from 3.4.1 to 3.4.15.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/v3.4.15/CHANGELOG.md)
- [Commits](tailwindlabs/tailwindcss@v3.4.1...v3.4.15)

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

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

frontend/package.json

@@ -86,7 +86,7 @@
     "striptags": "^3.2.0",
     "svgo": "^3.0.2",
     "tailwind-merge": "^2.5.2",
-    "tailwindcss": "^3.4.1",
+    "tailwindcss": "^3.4.15",
     "tailwindcss-animate": "^1.0.7",
     "ts-node": "^10.9.1",
     "wait-on": "6.0.0"