[Glitch] Add hover cards in web UI

Port e89317d4c1

Co-authored-by: Renaud Chaput <renchap@gmail.com>
Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/components/status_prepend.jsx

@@ -38,6 +38,7 @@ export default class StatusPrepend extends PureComponent {
         onClick={this.handleClick}
         href={account.get('url')}
         className='status__display-name'
+        data-hover-card-account={account.get('id')}
       >
         <bdi>
           <strong