Change hover cards to not appear until the mouse stops in web UI (#30850)

app/javascript/mastodon/features/direct_timeline/components/conversation.jsx

@@ -163,7 +163,7 @@ export const Conversation = ({ conversation, scrollKey, onMoveUp, onMoveDown })
   menu.push({ text: intl.formatMessage(messages.delete), action: handleDelete });
 
   const names = accounts.map(a => (
-    <Link to={`/@${a.get('acct')}`} key={a.get('id')} title={a.get('acct')}>
+    <Link to={`/@${a.get('acct')}`} key={a.get('id')} data-hover-card-account={a.get('id')}>
       <bdi>
         <strong
           className='display-name__html'