Refactored the way cover images are updated from SignalR to use an explicit event that is sent at a granular level for a given type of entity. (#1046)

Fixed a bad event listener for RefreshMetadata (now removed) to update metadata on Series Detail. Now uses ScanService, which indicates a series has completed a scan.

UI/Web/src/app/_services/image.service.ts

@@ -79,7 +79,7 @@ export class ImageService implements OnDestroy {
    * @returns Url with a random parameter attached
    */
   randomize(url: string) {
-    const r = Math.random() * 100 + 1;
+    const r = Math.round(Math.random() * 100 + 1);
     if (url.indexOf('&random') >= 0) {
       return url + 1;
     }