Created frame for FindWindow, shortened CoinCollection

PcgsInvUi/Views/FindWindow.axaml.cs

@@ -0,0 +1,15 @@
+using Avalonia.ReactiveUI;
+using PcgsInvUi.ViewModels;
+using ReactiveUI;
+using System;
+
+namespace PcgsInvUi.Views;
+
+public partial class FindWindow : ReactiveWindow<FindWindowViewModel>
+{
+    public FindWindow()
+    {
+        InitializeComponent();
+        this.WhenActivated(d => d(ViewModel!.OkCommand.Subscribe(Close)));
+    }
+}