Removing UWP project.

Wino.Mail.WinUI/Selectors/MailItemDisplaySelector.cs

@@ -0,0 +1,28 @@
+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 MailItemDisplaySelector : DataTemplateSelector
+    {
+        public DataTemplate SingleMailItemTemplate { get; set; }
+        public DataTemplate ThreadMailItemTemplate { get; set; }
+
+        protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
+        {
+            if (item is MailItemViewModel)
+                return SingleMailItemTemplate;
+            else if (item is ThreadMailItemViewModel)
+                return ThreadMailItemTemplate;
+
+            return base.SelectTemplateCore(item, container);
+        }
+    }
+}