break wallet navigation off into seperate view

Toolkit.Foundation/ObservableCollection.cs

@@ -659,6 +659,14 @@ public partial class ObservableCollection<TItem> :
         {
             newSelection.IsSelected = true;
         }
+
+        Publisher.Publish(Selection.As(SelectedItem));
+        OnSelectedItemChanged();
+    }
+    
+    protected virtual void OnSelectedItemChanged()
+    {
+
     }
 
     private void UpdateSelection(TItem item)
@@ -672,7 +680,7 @@ public partial class ObservableCollection<TItem> :
                     oldSelection.IsSelected = false;
                 }
 
-                dispatcher.Invoke(() => SelectedItem = item);
+                SelectedItem = item;
             }
         }
     }

Toolkit.Foundation/Selection.cs

@@ -2,9 +2,9 @@
 
 public record Selection
 {
-    public static SelectionEventArgs<TValue> As<TValue>(TValue value) =>
-        new(value);
+    public static SelectionEventArgs<TSender?> As<TSender>(TSender? sender) =>
+        new(sender);
 
-    public static SelectionEventArgs<TValue> As<TValue>() where TValue : new() =>
-        new(new TValue());
+    public static SelectionEventArgs<TSender?> As<TSender>() where TSender : new() =>
+        new(new TSender());
 }