Ensure containers show up in the menu when they are created

Bitvault/ItemCommandHeaderViewModel.cs

@@ -0,0 +1,22 @@
+using Toolkit.Foundation;
+
+namespace Bitvault;
+
+public partial class ItemCommandHeaderViewModel : ObservableCollectionViewModel
+{
+    public ItemCommandHeaderViewModel(IServiceProvider provider, 
+        IServiceFactory factory,
+        IMediator mediator, 
+        IPublisher publisher, 
+        ISubscriber subscriber, 
+        IDisposer disposer,
+        IContentTemplate template) : base(provider, factory, mediator, publisher, subscriber, disposer)
+    {
+        Add<ConfirmItemActionViewModel>();
+        Add<DismissItemActionViewModel>();
+
+        Template = template;
+    }
+
+    public IContentTemplate Template { get; set; }
+}