Wire up the disposer for cleaning up unused objects, i.e disposing a VM will remove it from the view

Hyperbar.Windows.Primary/WidgetComponentViewModelEnumerator.cs

@@ -0,0 +1,14 @@
+namespace Hyperbar.Windows.Primary;
+
+public class WidgetComponentViewModelEnumerator(PrimaryWidgetConfiguration configuration,
+    IViewModelFactory<PrimaryCommandConfiguration, IWidgetComponentViewModel?> factory) :
+    IViewModelEnumerator<IWidgetComponentViewModel>
+{
+    public async IAsyncEnumerable<IWidgetComponentViewModel?> Next()
+    {
+        foreach (PrimaryCommandConfiguration item in configuration)
+        {
+            yield return await factory.CreateAsync(item);
+        }
+    }
+}