feat: 封装一些函数，补充页面样式

Co-authored-by: Copilot <copilot@github.com>

app/app.vue

@@ -5,13 +5,13 @@ import "vue-sonner/style.css";
 
 const userStore = useUserStore();
 
-onMounted(() => {
+onBeforeMount(() => {
   userStore.getUserInfo();
 });
 </script>
 
 <template>
-  <div class="min-h-dvh">
+  <div class="h-dvh">
     <Toaster position="top-center" />
     <NuxtLayout>
       <NuxtPage />