wip: refresh design

packages/lib/server-only/headers/get-locale.tsx

@@ -0,0 +1,11 @@
+import { headers } from 'next/headers';
+
+export const getLocale = () => {
+  const headerItems = headers();
+
+  const locales = headerItems.get('accept-language') ?? 'en-US';
+
+  const [locale] = locales.split(',');
+
+  return locale;
+};