Various small fixes and documentation updates.

src/components/thumbnail-carousel.ts

@@ -59,7 +59,7 @@ export class FrigateCardThumbnailCarousel extends LitElement {
   @property({ attribute: false })
   public config?: ThumbnailsControlConfig;
 
-  @property({ attribute: false, type: Number, reflect: true })
+  @property({ attribute: true, type: Number, reflect: true })
   public selected?: number;
 
   protected _carouselOptions?: EmblaOptionsType;

src/components/timeline-core.ts

@@ -730,10 +730,10 @@ export class FrigateCardTimelineCore extends LitElement {
             })
             .mergeInContext(context)
             .dispatchChangeEvent(this);
-          if (this.view.is('timeline')) {
+          if (!this.view.isViewerView()) {
             dispatchFrigateCardEvent(this, 'thumbnails:open');
           }
-        } else if (this.view.is('timeline')) {
+        } else if (!this.view.isViewerView()) {
           dispatchFrigateCardEvent(this, 'thumbnails:close');
         }
       }