refactor: simplify documentation structure by removing multi-language i18n support and unused components

documentation/src/app/(home)/page.tsx

@@ -0,0 +1,16 @@
+import Link from "next/link";
+
+export default function HomePage() {
+	return (
+		<div className="flex flex-col justify-center text-center flex-1">
+			<h1 className="text-2xl font-bold mb-4">Hello World</h1>
+			<p>
+				You can open{" "}
+				<Link href="/docs" className="font-medium underline">
+					/docs
+				</Link>{" "}
+				and see the documentation.
+			</p>
+		</div>
+	);
+}