chore: remove pages director, create app/page.js

app/page.js

+import Button from '@components/button';
+
+const HomePage = () => {
+  return (
+    <div className="container">
+      <center style={{ padding: '2em' }}>
+        <h3 style={{ fontWeight: 'normal' }}>
+          Welcome to Next.js starter template
+        </h3>
+        <Button size="small" href="/another">
+          View another page
+        </Button>
+      </center>
+    </div>
+  );
+};
+
+export default HomePage;

pages/404.js

-import PageNotFound from '@components/page-not-found';
-
-function FourOhFour() {
-  return <PageNotFound />;
-}
-
-export default FourOhFour;

pages/_app.js

-import '@styles/global.scss';
-
-function MyApp({ Component, pageProps }) {
-  return <Component {...pageProps} />;
-}
-
-export default MyApp;

pages/api/hello.js

-// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
-
-export default (req, res) => {
-  res.status(200).json({ name: 'John Doe' })
-}