feat: rename to PinCode, add styles for size.

demo/Ursa.Demo/ViewModels/PinCodeDemoViewModel.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using System.Windows.Input;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Ursa.Controls;
+
+namespace Ursa.Demo.ViewModels;
+
+public partial class PinCodeDemoViewModel: ObservableObject
+{
+    public ICommand CompleteCommand { get; set; }
+    [ObservableProperty] private List<Exception>? _error;
+
+    public PinCodeDemoViewModel()
+    {
+        CompleteCommand = new AsyncRelayCommand<IList<string>>(OnComplete);
+        Error = [new Exception("Invalid verification code")];
+    }
+
+    private async Task OnComplete(IList<string>? obj)
+    {
+        if (obj is null) return;
+        var code = string.Join("", obj);
+        await MessageBox.ShowOverlayAsync(code);
+    }
+}