web/plugins/pinia.js

import { createPinia } from 'pinia'
import { defineNuxtPlugin } from '#app'
import { createPersistedState } from 'pinia-plugin-persistedstate'

export default defineNuxtPlugin((nuxtApp) => {
  const pinia = createPinia()
  pinia.use(createPersistedState())
  nuxtApp.vueApp.use(pinia)
})