MVVM - Introduce the concept of disposables to track event listeners, sub vms and so on (#30475)

* Introduce disposables to track sub vms and event listeners

* Remove old code

* Use disposable in BaseViewModel

* Update vm so that the listener is tracked through disposable

* No-op on dispose call instead of throwing error

* Throw error in trackListener as well

* Fix audio player vm

* Expose isDisposed through base vm

* Dispose AudioPlayerViewModel

src/components/views/messages/MAudioBody.tsx

@@ -74,6 +74,7 @@ export default class MAudioBody extends React.PureComponent<IBodyProps, IState>
 
     public componentWillUnmount(): void {
         this.state.playback?.destroy();
+        this.state.audioPlayerVm?.dispose();
     }
 
     protected get showFileBody(): boolean {