chore(deps): update devdependency nuxt to v4

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
     "@nuxthq/studio": "^0.13.4",
     "@nuxtjs/eslint-config-typescript": "^12.0.0",
     "eslint": "^8.46.0",
-    "nuxt": "3.6.5",
+    "nuxt": "4.1.3",
     "nuxt-plausible": "^0.1.2",
     "release-it": "^16.1.3",
     "typescript": "^5.1.6"