Bump tailwindcss from 3.4.17 to 4.1.5

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 3.4.17 to 4.1.5.
- [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/v4.1.5/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs-src/package.json

@@ -18,7 +18,7 @@
     "sharp": "^0.34.0",
     "shepherd.js": "workspace:*",
     "starlight-typedoc": "^0.18.0",
-    "tailwindcss": "^3.4.17",
+    "tailwindcss": "^4.1.5",
     "typedoc": "^0.26.7",
     "typedoc-plugin-markdown": "4.2.9",
     "typescript": "^5.7.3"

landing/package.json

@@ -20,7 +20,7 @@
     "@polar-sh/sdk": "^0.20.2",
     "astro": "^5.2.4",
     "shepherd.js": "workspace:*",
-    "tailwindcss": "^3.4.17",
+    "tailwindcss": "^4.1.5",
     "typescript": "^5.7.3"
   },
   "devDependencies": {