build(deps-dev): bump @tailwindcss/vite from 4.1.5 to 4.1.6 (#2987)

Bumps [@tailwindcss/vite](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/@tailwindcss-vite) from 4.1.5 to 4.1.6.
- [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/v4.1.6/packages/@tailwindcss-vite)

---
updated-dependencies:
- dependency-name: "@tailwindcss/vite"
  dependency-version: 4.1.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

packages/frontend/package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "@sveltejs/vite-plugin-svelte": "5.0.3",
     "@tailwindcss/typography": "^0.5.16",
-    "@tailwindcss/vite": "^4.1.5",
+    "@tailwindcss/vite": "^4.1.6",
     "@testing-library/dom": "^10.4.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/svelte": "^5.2.7",