feat: graphql client with fetches for initial pages

app/[lang]/page.tsx

@@ -1,3 +1,7 @@
-export default function Home() {
-  return <main>Hello world!</main>;
+export default async function Home() {
+  return (
+    <main>
+      <h1>Hello world!</h1>
+    </main>
+  );
 }