build(deps-dev): Bump tailwindcss from 3.4.3 to 4.2.1

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss) from 3.4.3 to 4.2.1.
- [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/v4.2.1/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-version: 4.2.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -26,7 +26,7 @@
     "postcss-import": "^16.1.1",
     "postcss-nesting": "^14.0.0",
     "semantic-release": "^25.0.2",
-    "tailwindcss": "^3.4.3",
+    "tailwindcss": "^4.2.1",
     "tippy.js": "^6.3.7",
     "vite": "^7.3.1"
   },