Fix discord button

src/components/DiscordButton.tsx

@@ -9,6 +9,7 @@ export function DiscordButton ({ href }: { href?: string }) {
         <Link
           href={href ?? '/discord'}
           className='top-button absolute -top-4 -right-4'
+          rel='noopener noreferrer'
         >
           <FontAwesomeIcon icon={faDiscord} />
         </Link>