fix(metadata): duplicate metadata

Author: json-q

app/post/layout.tsx

@@ -1,10 +1,3 @@
-import type { Metadata } from 'next';
-
-export const metadata: Metadata = {
-  title: 'Post | Jsonq’s Blog',
-  description: 'Daily work and study notes, front、back end and more',
-};
-
 export default function PostLayout({
   children,
 }: Readonly<{