Removing UWP project.

Wino.Mail.WinUI/Selectors/MailItemContainerStyleSelector.cs

@@ -0,0 +1,26 @@
+
+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 MailItemContainerStyleSelector : StyleSelector
+    {
+        public Style Thread { get; set; }
+
+        protected override Style SelectStyleCore(object item, DependencyObject container)
+        {
+            if (item is ThreadMailItemViewModel)
+                return Thread;
+            else
+                return base.SelectStyleCore(item, container);
+        }
+    }
+}