refactor: migrate to rsc and app dir

app/page.tsx

@@ -0,0 +1,10 @@
+import { sortedBlogPost, allCoreContent } from 'pliny/utils/contentlayer'
+import { allBlogs } from 'contentlayer/generated'
+import type { Blog } from 'contentlayer/generated'
+import Main from './Main'
+
+export default async function Page() {
+  const sortedPosts = sortedBlogPost(allBlogs) as Blog[]
+  const posts = allCoreContent(sortedPosts)
+  return <Main posts={posts} />
+}