Bump tailwindcss from 4.0.9 to 4.0.15

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 4.0.9 to 4.0.15.
- [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/v4.0.15/packages/tailwindcss)

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

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

Author: dependabot[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "svelte": "^5.23.0",
     "tailwind-merge": "^3.0.2",
     "tailwind-variants": "^0.3.1",
-    "tailwindcss": "^4.0.9",
+    "tailwindcss": "^4.0.15",
     "unist-util-remove": "^4.0.0",
     "unist-util-visit": "^5.0.0"
   },