refactor: move content of src/ to root dir for readability

src/components/NavLink.tsx

@@ -1,18 +0,0 @@
-import { ReactNode } from 'react';
-import Link from 'next/link';
-
-type Props = {
-  href: string,
-  children: ReactNode,
-}
-
-export function NavLink({href, children}: Props) {
-  return (
-    <Link
-      href={href}
-      className="inline-block rounded-lg py-1 px-2 text-lg font-medium text-slate-700 hover:bg-slate-100 hover:text-slate-900"
-    >
-      {children}
-    </Link>
-  );
-}