General account details settings and some marking mail issues

Wino.Mail.WinUI/Views/Account/AccountDetailsPage.xaml.cs

@@ -1,6 +1,7 @@
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Navigation;
+using Wino.Core.ViewModels.Data;
 using Wino.Core.Domain.Models.Folders;
 using Wino.Mail.ViewModels;
 using Wino.Views.Abstract;
@@ -56,6 +57,14 @@ public sealed partial class AccountDetailsPage : AccountDetailsPageAbstract
         }
     }
 
+    private async void CalendarColorItemClick(object sender, ItemClickEventArgs e)
+    {
+        if (sender is GridView { Tag: AccountCalendarSettingsItemViewModel calendarItem } && e.ClickedItem is AppColorViewModel color)
+        {
+            await ViewModel.UpdateCalendarColorAsync(calendarItem, color);
+        }
+    }
+
     protected override void OnNavigatedTo(NavigationEventArgs e)
     {
         base.OnNavigatedTo(e);