Update dependency nuxt to v4

Author: renovate[bot]

package.json

@@ -14,7 +14,7 @@
     "@oxc-parser/binding-linux-x64-gnu": "^0.93.0",
     "@playwright/test": "^1.55.1",
     "autoprefixer": "^10.4.21",
-    "nuxt": "^3.19.2",
+    "nuxt": "^4.1.2",
     "nuxt-icon": "^0.6.10",
     "prettier": "^3.6.2",
     "tailwindcss": "^3.4.17"