Added "use client".

src/app/(main)/websites/[websiteId]/realtime/RealtimeUrls.tsx

@@ -1,3 +1,4 @@
+'use client';
 import { Key, useMemo, useState } from 'react';
 import { ButtonGroup, Button, Flexbox } from 'react-basics';
 import thenby from 'thenby';