Added HandleMany

Bitvault/ItemEntryViewModel.cs

@@ -0,0 +1,24 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using Toolkit.Foundation;
+
+namespace Bitvault;
+
+public partial class ItemEntryViewModel<TKey, TValue> :
+    Observable<TKey, TValue>
+{
+    public ItemEntryViewModel(IServiceProvider provider, 
+        IServiceFactory factory,
+        IMediator mediator, 
+        IPublisher publisher, 
+        ISubscription subscriber,
+        IDisposer disposer,
+        string type,
+        TKey? key = default,
+        TValue? value = default) : base(provider, factory, mediator, publisher, subscriber, disposer, key, value)
+    {
+        Type = type;
+    }
+
+    [ObservableProperty]
+    private string type;
+}