chore: improvement to wasm delay fix from #720

UI/ChatSignalR/UnoChat.Client/UnoChat.Shared/ViewModel.cs

@@ -209,7 +209,6 @@ namespace UnoChat.Client
 
         private IDisposable ShouldSendModelsAddedToAllMessagesToMessageObserver(IObserver<Model> messageObserver)
         {
-#if !__WASM__
             return Observable
                 .FromEvent<NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>(
                     handler => (s, e) => handler(e),
@@ -218,24 +217,11 @@ namespace UnoChat.Client
                 .Where(args => args.Action == NotifyCollectionChangedAction.Add)
                 .Select(args => args.NewItems.OfType<Message.Model>().FirstOrDefault())
                 .Where(model => model != null)
-
 #if !__WASM__
                 .Delay(TimeSpan.FromMilliseconds(10), Schedulers.Default) // Wait for the list view to have been updated
 #endif
                 .ObserveOn(Schedulers.Dispatcher)
                 .Subscribe(messageObserver);
-#else
-            return Observable
-                .FromEvent<NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>(
-                    handler => (s, e) => handler(e),
-                    handler => _allMessages.CollectionChanged += handler,
-                    handler => _allMessages.CollectionChanged -= handler)
-                .Where(args => args.Action == NotifyCollectionChangedAction.Add)
-                .Select(args => args.NewItems.OfType<Message.Model>().FirstOrDefault())
-                .Where(model => model != null)
-                .ObserveOn(Schedulers.Dispatcher)
-                .Subscribe(messageObserver);
-#endif
         }
 
         public IDisposable Activate(IObservable<object> messageToSendBoxReturn, IObserver<string> themeObserver, IObserver<Message.Model> messageObserver)