chore: update prepare command

Author: atinux

package.json

@@ -19,7 +19,7 @@
     "prepack": "nuxt-module-build build",
     "dev": "nuxi dev playground",
     "dev:build": "nuxi build playground",
-    "dev:prepare": "nuxt-module-build --stub && nuxt-module-build prepare && nuxi prepare playground",
+    "dev:prepare": "nuxt-module-build build --stub && nuxt-module-build prepare && nuxi prepare playground",
     "lint": "eslint .",
     "test:types": "vue-tsc --noEmit",
     "prepublishOnly": "pnpm lint",