chore(deps): update dependency nuxt to ^3.15.0

Author: renovate[bot]

docs/package.json

@@ -13,6 +13,6 @@
   },
   "devDependencies": {
     "@nuxt-themes/docus": "^1.15.1",
-    "nuxt": "^3.14.1592"
+    "nuxt": "^3.15.0"
   }
 }

package.json

@@ -133,7 +133,7 @@
     "flat": "^6.0.1",
     "fs-extra": "^11.2.0",
     "lint-staged": "^15.2.11",
-    "nuxt": "^3.13.2",
+    "nuxt": "^3.15.0",
     "prettier": "^3.4.2",
     "sharp": "^0.33.5",
     "sharp-ico": "^0.1.5",