Fix the AOT issue with custom binding of IsSelected property through CVS in Mail List.

Wino.Mail.WinUI/Controls/ListView/WinoMailItemViewModelListViewItem.cs

@@ -1,16 +1,45 @@
+using System.ComponentModel;
+using System.Diagnostics;
 using CommunityToolkit.WinUI;
+using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Wino.Mail.ViewModels.Data;
+using WinRT;
 
 namespace Wino.Mail.WinUI.Controls.ListView;
 
+[GeneratedBindableCustomProperty]
 public partial class WinoMailItemViewModelListViewItem : ListViewItem
 {
     [GeneratedDependencyProperty]
     public partial MailItemViewModel? Item { get; set; }
 
+    [GeneratedDependencyProperty]
+    public partial bool IsCustomSelected { get; set; }
+
     public WinoMailItemViewModelListViewItem()
     {
         DefaultStyleKey = typeof(WinoMailItemViewModelListViewItem);
     }
+
+    partial void OnItemPropertyChanged(DependencyPropertyChangedEventArgs e)
+    {
+        Debug.WriteLine("WinoMailItemViewModelListViewItem item changed");
+
+        if (e.OldValue is MailItemViewModel oldMailItemViewModel) UnregisterPropertyChanged(oldMailItemViewModel);
+        if (e.NewValue is MailItemViewModel newMailItemViewModel) RegisterPropertyChanged(newMailItemViewModel);
+    }
+
+    private void RegisterPropertyChanged(MailItemViewModel model) => model.PropertyChanged += ModelPropertyChanged;
+    private void UnregisterPropertyChanged(MailItemViewModel model) => model.PropertyChanged -= ModelPropertyChanged;
+
+    private void ModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (sender is not MailItemViewModel mailItemViewModel) return;
+
+        if (e.PropertyName == nameof(MailItemViewModel.IsSelected))
+        {
+            IsCustomSelected = mailItemViewModel.IsSelected;
+        }
+    }
 }