Initial WinUI switch.

Wino.Core.WinUI/Dialogs/AccountPickerDialog.xaml.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using Microsoft.UI.Xaml.Controls;
+using Wino.Core.Domain.Entities.Shared;
+
+namespace Wino.Dialogs;
+
+public sealed partial class AccountPickerDialog : ContentDialog
+{
+    public MailAccount PickedAccount { get; set; }
+
+    public List<MailAccount> AvailableAccounts { get; set; }
+
+    public AccountPickerDialog(List<MailAccount> availableAccounts)
+    {
+        AvailableAccounts = availableAccounts;
+
+        InitializeComponent();
+    }
+
+    private void AccountClicked(object sender, ItemClickEventArgs e)
+    {
+        PickedAccount = e.ClickedItem as MailAccount;
+
+        Hide();
+    }
+}