message: refactor: tighen up types for carousel x-item
diff: @@ -6,7 +6,7 @@ import template from './template';
  @layout(template)
  export default class CarouselItem extends Component {
  // Required properties
  - allItems!: object[];
  + allItems!: CarouselItem[];
  @requiredAction
  register!: (item: object) => void;
  @@ -23,7 +23,7 @@ export default class CarouselItem extends Component {
  @computed('allItems.@each')
  get isActive() {
  - return (this as object) === this.allItems.firstObject;
  + return this === this.allItems[0];
  }
  @computed('isActive')
  