feat(website): add next-intl i18n and dark mode support

website/next.config.ts

@@ -1,7 +1,8 @@
 import type { NextConfig } from "next";
+import createNextIntlPlugin from 'next-intl/plugin';
 
-const nextConfig: NextConfig = {
-  /* config options here */
-};
+const withNextIntl = createNextIntlPlugin('./src/i18n/request.ts');
 
-export default nextConfig;
+const nextConfig: NextConfig = {};
+
+export default withNextIntl(nextConfig);