Add missing view locator

src/Dex.AnomalyCustom.Launcher.Avalonia/ViewLocator.cs

@@ -0,0 +1,32 @@
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+
+using ReactiveUI;
+
+using System;
+
+namespace Dex.AnomalyCustom.Launcher.Avalonia;
+
+public class ViewLocator : IDataTemplate
+{
+    public Control Build(object? data)
+    {
+        var name = data!.GetType()
+            .FullName!
+            .Replace("ViewModel", "View");
+        var type = Type.GetType(name);
+        if (type != null)
+        {
+            return (Control)Activator.CreateInstance(type)!;
+        }
+        return new TextBlock
+        {
+            Text = name,
+        };
+    }
+
+    public bool Match(object? data)
+    {
+        return data is ReactiveObject;
+    }
+}