feat(docs): migrate bs docs

blocksuite/docs-site/.vitepress/theme/components/blog-post-meta.vue

@@ -0,0 +1,36 @@
+<template>
+  <div class="blog-post-meta">
+    <span class="post-date">{{ post.date.formatted }}</span> by
+    <span v-html="formattedAuthors"></span>
+  </div>
+</template>
+
+<script setup>
+import { computed } from 'vue';
+
+import { usePosts } from '../composables/use-posts';
+
+const { post } = usePosts();
+
+const formattedAuthors = computed(() => {
+  return post.value.authors
+    .map(
+      author =>
+        `<a class="author" href="${author.link}" target="_blank">${author.name}</a>`
+    )
+    .join(', ');
+});
+</script>
+
+<style>
+.blog-post-meta {
+  margin-top: 8px;
+  font-size: 14px;
+}
+.author {
+  color: var(--vp-c-text-1) !important;
+}
+.post-date {
+  color: var(--vp-c-text-2);
+}
+</style>