fix(nuxt): Avoid recursive import from Nuxt #imports (#1823)

Author: xel1045

packages/nuxt/src/runtime/composables.ts

@@ -1,4 +1,4 @@
-import { useNuxtApp } from '#imports'
+import { useNuxtApp } from '#app'
 export * from 'pinia'
 
 export const usePinia = () => useNuxtApp().$pinia