Bump tailwindcss from 3.4.17 to 4.1.4

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 3.4.17 to 4.1.4.
- [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/v4.1.4/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.1.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -29,7 +29,7 @@
     "rehype-pretty-code": "^0.14.1",
     "sharp": "^0.34.1",
     "shiki": "^3.3.0",
-    "tailwindcss": "^3.4.17",
+    "tailwindcss": "^4.1.4",
     "typescript": "^5.8.3"
   },
   "packageManager": "yarn@3.6.3"