Bump tailwindcss from 3.4.15 to 4.1.8

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 3.4.15 to 4.1.8.
- [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/v4.1.8/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -22,6 +22,6 @@
     "postcss": "^8.5.4",
     "sass": "^1.89.1",
     "sass-loader": "^16.0.3",
-    "tailwindcss": "^3.4.15"
+    "tailwindcss": "^4.1.8"
   }
 }