feat: add pinia stores (#170)

src/pages/index.vue

@@ -1,8 +1,10 @@
 <script setup lang="ts">
 import { useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
+import { useUserStore } from '~/stores/user'
 
-const name = ref('')
+const user = useUserStore()
+const name = ref(user.savedName)
 
 const router = useRouter()
 const go = () => {