Angular 16 (#2007)

* Removed adv, which isn't needed.

* Updated zone

* Updated to angular 16

* Updated to angular 16 (partially)

* Updated to angular 16

* Package update for Angular 16 (and other dependencies) is complete.

* Replaced all takeUntil(this.onDestroy) with new takeUntilDestroyed()

* Updated all inputs that have ! to be required and deleted all unit tests.

* Corrected how takeUntilDestroyed() is supposed to be implemented.

UI/Web/src/app/cards/download-indicator/download-indicator.component.ts

@@ -14,7 +14,7 @@ export class DownloadIndicatorComponent {
   /**
    * Observable that represents when the download completes
    */
-  @Input() download$!: Observable<Download | DownloadEvent | null> | null;
+  @Input({required: true}) download$!: Observable<Download | DownloadEvent | null> | null;
 
   constructor() { }
 }