feat(theme): add target/rel props support for LinkCard (#556)

docs/notes/theme/guide/components/link-card.md

@@ -17,6 +17,7 @@ permalink: /guide/components/link-card/
 | icon        | `string \| { svg: string }` | `''`   | 显示在标题左侧的图标，支持 iconify 所有图标，也可以使用 图片链接 |
 | href        | `string`                    | `''`   | 链接                                                             |
 | description | `string`                    | `''`   | 详情                                                             |
+| target      | `string`                    | `''`   | 链接打开方式                                                             |
 
 ## 插槽
 

theme/src/client/components/global/VPLinkCard.vue

@@ -7,13 +7,15 @@ defineProps<{
   title?: string
   icon?: string | { svg: string }
   description?: string
+  target?: string
+  rel?: string
 }>()
 </script>
 
 <template>
   <div class="vp-link-card">
     <span class="body">
-      <VPLink :href="href" no-icon class="link no-icon">
+      <VPLink :href="href" no-icon class="link no-icon" v-bind="{ target, rel }">
         <slot name="title">
           <VPIcon v-if="icon" :name="icon" />
           <span v-if="title" v-html="title" />