chore(deps): update nuxt core to v4

Author: renovate[bot]

docs/package.json

@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@nuxt-themes/docus": "1.15.1",
-    "nuxt": "3.17.6",
+    "nuxt": "4.0.0",
     "pinceau": "^0.20.1"
   }
 }

package.json

@@ -42,7 +42,7 @@
     "test": "pnpm vitest run"
   },
   "dependencies": {
-    "@nuxt/kit": "^3.15.4",
+    "@nuxt/kit": "^4.0.0",
     "consola": "^3.4.0",
     "html-validate": "~9.7.0",
     "knitwork": "^1.2.0",
@@ -59,7 +59,7 @@
     "eslint": "9.30.1",
     "husky": "9.1.7",
     "lint-staged": "16.1.2",
-    "nuxt": "3.17.6",
+    "nuxt": "4.0.0",
     "simple-git-hooks": "2.13.0",
     "vitest": "3.2.4"
   },
@@ -73,7 +73,7 @@
   },
   "resolutions": {
     "@nuxt/content": "2.13.4",
-    "@nuxt/kit": "3.17.6",
+    "@nuxt/kit": "^4.0.0",
     "@nuxtjs/html-validator": "link:./"
   },
   "publishConfig": {