fix: update dependency @nuxt/kit to v4

Author: renovate[bot]

package.json

@@ -41,7 +41,7 @@
   },
   "dependencies": {
     "@dword-design/functions": "^6.0.2",
-    "@nuxt/kit": "^3.17.4",
+    "@nuxt/kit": "^4.0.0",
     "fs-extra": "^11.3.0",
     "h3": "^1.15.3",
     "nodemailer": "^7.0.3",