fix: 修复download页面的导航路由

- 删除`文件下载`的导航链接
- 添加返回到`服务支持`与`文档资料`的链接

app/pages/download/[id].vue

@@ -19,7 +19,9 @@
 
   const breadcrumbItems = [
     { label: $t('navigation.home'), to: localePath('/') },
-    { label: $t('navigation.downloads'), to: localePath('/downloads') },
+    { label: $t('navigation.support'), to: localePath('/support') },
+    { label: $t('navigation.documents'), to: localePath('/support/documents') },
+    { label: $t('navigation.downloads') },
   ];
 
   const id = route.params.id as string;