feat: allow injecting BlazorDesktopWindow

Author: AndrewBabbitt97

README.md

@@ -140,10 +140,10 @@ In terms of handling things such as the close button, you can inject the Window
 
 Here is an example changing `MainLayout.razor`:
 ```razor
-@using System.Windows
+@using BlazorDesktop.Wpf
 
 @inherits LayoutComponentBase
-@inject Window window
+@inject BlazorDesktopWindow window
 
 <div class="page">
     <div class="sidebar">

src/BlazorDesktop/Hosting/BlazorDesktopHostBuilder.cs

@@ -123,7 +123,7 @@ private void InitializeDefaultServices()
         Services.AddWpfBlazorWebView();
         Services.AddSingleton<WebViewInstaller>();
         Services.AddSingleton<Application>();
-        Services.AddSingleton<Window, BlazorDesktopWindow>();
+        Services.AddSingleton<BlazorDesktopWindow>();
         Services.AddHostedService<BlazorDesktopService>();
     }