chore: revert change to playground package.json

Author: danielroe

playground/package.json

@@ -7,6 +7,6 @@
     "nuxi": "node ../bin/nuxi.mjs"
   },
   "dependencies": {
-    "nuxt": "npm:nuxt-nightly@4.0.0-28826722.d275b382"
+    "nuxt": "latest"
   }
 }