fix：实现pinia数据持久化

src/main.js

@@ -1,10 +1,12 @@
 import { createSSRApp } from 'vue'
 import { createPinia } from 'pinia'
+import piniaPluginPersistedstate from 'pinia-plugin-persistedstate'
 import App from './App.vue'
 
 export function createApp() {
   const app = createSSRApp(App)
   const pinia = createPinia()
+  pinia.use(piniaPluginPersistedstate)
   app.use(pinia)
   return {
     app