message: Handle conversation updates for hide-active-deployments
diff: import select from 'select-dom';
  import * as pageDetect from '../libs/page-detect';
  -import observeEl from '../libs/simplified-element-observer';
  +import onNewComments from '../libs/on-new-comments';
  export default function () {
  if (!pageDetect.isPR()) {
  return;
  }
  - observeEl('.js-discussion', () => {
  + onNewComments(() => {
  const deployments = select.all('.discussion-item .deployment-meta');
  deployments.pop(); // Don't hide the last deployment, even if it is inactive
  