Bump nuxt from 3.18.1 to 4.0.3

Bumps [nuxt](https://github.com/nuxt/nuxt/tree/HEAD/packages/nuxt) from 3.18.1 to 4.0.3.
- [Release notes](https://github.com/nuxt/nuxt/releases)
- [Commits](https://github.com/nuxt/nuxt/commits/v4.0.3/packages/nuxt)

---
updated-dependencies:
- dependency-name: nuxt
  dependency-version: 4.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -23,7 +23,7 @@
     "@unhead/vue": "^2.0.14",
     "animate.css": "^4.1.1",
     "eslint": "^9.34.0",
-    "nuxt": "^3.18.1",
+    "nuxt": "^4.0.3",
     "sass": "^1.91.0",
     "tailwindcss": "^4.1.12",
     "typescript": "^5.9.2",