message: removed bug in activity-component.ts
diff: @@ -19,16 +19,14 @@ export class ActivityComponent implements Highlightable, OnChanges {
  @Input() activity;
  @Output() selected = new EventEmitter();
  @HostBinding('class.is-active') isHighlighted = false;
  - @Input() iconUrl: string;
  + iconUrl: string;
  disabled = false;
  ngOnChanges({ activity: activityChange }: SimpleChanges) {
  if (activityChange) {
  - if (this.activity.icon) {
  this.iconUrl = this.activity.icon;
  }
  }
  - }
  @HostListener('click')
  select() {
  