Bump cssnano from 7.1.9 to 8.0.2

Bumps [cssnano](https://github.com/cssnano/cssnano) from 7.1.9 to 8.0.2.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/cssnano@7.1.9...cssnano@8.0.2)

---
updated-dependencies:
- dependency-name: cssnano
  dependency-version: 8.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -28,7 +28,7 @@
   "homepage": "https://ad2ien.github.io/",
   "devDependencies": {
     "autoprefixer": "^10.4.27",
-    "cssnano": "^7.1.2",
+    "cssnano": "^8.0.2",
     "postcss": "^8.5.8",
     "postcss-cli": "^11.0.1",
     "tailwindcss": "^4.2.1",