Revert everything back. Mission failed.

Wino.Mail/Selectors/AccountProviderViewModelTemplateSelector.cs

@@ -0,0 +1,27 @@
+
+using Wino.Mail.ViewModels.Data;
+
+#if NET8_0
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+#else
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+#endif
+
+namespace Wino.Selectors
+{
+    public class AccountProviderViewModelTemplateSelector : DataTemplateSelector
+    {
+        public DataTemplate RootAccountTemplate { get; set; }
+        public DataTemplate MergedAccountTemplate { get; set; }
+
+        protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
+        {
+            if (item is MergedAccountProviderDetailViewModel)
+                return MergedAccountTemplate;
+            else
+                return RootAccountTemplate;
+        }
+    }
+}