weddingsite/components/NavLink.js

import React from 'react';
import Link from 'next/link';
import { useRouter } from 'next/router';

export const NavLink = ({ children, href }) => {
  const child = React.Children.only(children);
  const router = useRouter();

  return (
    <Link href={href}>
      {React.cloneElement(child, {
        'aria-current':
          router.pathname === href || router.pathname.includes(`${href}/`)
            ? 'page'
            : null,
      })}
    </Link>
  );
};