feat(i18n): 添加主页国际化支持并优化页面布局

- 在 AppHeader 组件中添加国际化支持，根据路由元数据动态显示标题
- 在主页页面中添加页面元数据，包括布局、标题和国际化标识
- 优化 AppHeader 组件结构，提高可维护性

app/components/AppHeader.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script setup>
 import { useAppFooterRouteNames as routeWhiteList } from '~/config'
 
 const route = useRoute()
@@ -29,7 +29,8 @@ const showLeftArrow = computed(() => route.name && routeWhiteList.includes(route
     placeholder clickable fixed
     @click-left="onBack"
   >
-    <template #title>
+    <template #title v-if="route.meta.i18n==='menu.home'">
+
       <div class="flex flex-col items-center justify-center">
         <div class="text-#000000 text-17px mb-5px font-600">京都拍卖会</div>
         <div class="text-#939393 text-10px line-height-none font-100">2025.01.18 蒙娜丽莎的微笑</div>

app/pages/home/index.vue

@@ -3,6 +3,11 @@ import liveBroadcast from '@/components/liveBroadcast/index.vue'
 import { useRect } from '@vant/use';
 
 import itemDetail from '@/components/itemDetail/index.vue'
+definePageMeta({
+  layout: 'default',
+  title: '主页',
+  i18n: 'menu.home',
+})
 const liveRef=ref(null)
 const loading = ref(false)
 const finished = ref(false)