feat: replace next-seo with custom header

pages/blog.js

@@ -3,7 +3,7 @@ import siteMetadata from '@/data/siteMetadata'
 import ListLayout from '@/layouts/ListLayout'
 import { PageSeo } from '@/components/SEO'
 
-export const POSTS_PER_PAGE = 10
+export const POSTS_PER_PAGE = 5
 
 export async function getStaticProps() {
   const posts = await getAllFilesFrontMatter('blog')
@@ -19,11 +19,7 @@ export async function getStaticProps() {
 export default function Blog({ posts, initialDisplayPosts, pagination }) {
   return (
     <>
-      <PageSeo
-        title={`Blog - ${siteMetadata.author}`}
-        description={siteMetadata.description}
-        url={`${siteMetadata.siteUrl}/blog`}
-      />
+      <PageSeo title={`Blog - ${siteMetadata.author}`} description={siteMetadata.description} />
       <ListLayout
         posts={posts}
         initialDisplayPosts={initialDisplayPosts}