message: simplify generation of css thread animation interval
diff: @@ -48,13 +48,12 @@ export default class WorkflowThread extends Component<WorkflowThreadArgs> {
  // this puts control on when and how to scroll in users' hands
  this.autoscroll = false;
  this.threadAnimationInterval = 0;
  - this.cssThreadAnimationInterval = '0ms';
  } else {
  // otherwise, turn on autoscrolling and use the interval defined in config
  this.autoscroll = true;
  this.threadAnimationInterval = interval;
  - this.cssThreadAnimationInterval = `${interval}ms`;
  }
  + this.cssThreadAnimationInterval = `${this.threadAnimationInterval}ms`;
  this.workflow.interval = this.threadAnimationInterval;
  }
  