chore: update typescript

src/App.vue

@@ -5,10 +5,11 @@
 </template>
 
 <script lang="ts">
+import { defineComponent } from "vue";
 import { ElConfigProvider } from "element-plus";
 import zhCn from "element-plus/lib/locale/lang/zh-cn";
 import en from "element-plus/lib/locale/lang/en";
-export default {
+export default defineComponent({
   name: "app",
   components: {
     [ElConfigProvider.name]: ElConfigProvider
@@ -18,5 +19,5 @@ export default {
       return this.$storage.locale?.locale === "zh" ? zhCn : en;
     }
   }
-};
+});
 </script>