feat: remove Page router and migrate about page to App Router

next-env.d.ts

@@ -1,6 +1,5 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-/// <reference types="next/navigation-types/compat/navigation" />
 
 // NOTE: This file should not be edited
 // see https://nextjs.org/docs/basic-features/typescript for more information.

src/app/[locale]/about/page.tsx

@@ -0,0 +1,20 @@
+import { Main } from '@/templates/Main';
+
+export default function About() {
+  return (
+    <Main>
+      <p>
+        Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ratione fuga
+        recusandae quidem. Quaerat molestiae blanditiis doloremque possimus
+        labore voluptatibus distinctio recusandae autem esse explicabo molestias
+        officia placeat, accusamus aut saepe.
+      </p>
+      <p>
+        Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ratione fuga
+        recusandae quidem. Quaerat molestiae blanditiis doloremque possimus
+        labore voluptatibus distinctio recusandae autem esse explicabo molestias
+        officia placeat, accusamus aut saepe.
+      </p>
+    </Main>
+  );
+}