fix app builder api.

samples/ControlCatalog.Web/App.razor.cs

@@ -6,7 +6,8 @@ public partial class App
 {
     protected override void OnParametersSet()
     {
-        BlazorSingleViewLifetimeExtensions.SetupWithBlazorSingleViewLifetime<ControlCatalog.App>();
+        BlazorSingleViewLifetimeExtensions.UseBlazor<ControlCatalog.App>()
+            .SetupWithSingleViewLifetime();
 
         base.OnParametersSet();
     }

src/Web/Avalonia.Web.Blazor/BlazorSingleViewLifetime.cs

@@ -11,15 +11,19 @@ namespace Avalonia.Web.Blazor
 
     public static class BlazorSingleViewLifetimeExtensions
     {
+        public static T SetupWithSingleViewLifetime<T>(
+            this T builder)
+            where T : AppBuilderBase<T>, new()
+        {
+            return builder.SetupWithLifetime(new BlazorSingleViewLifetime());
+        }
 
-
-        public static AvaloniaBlazorAppBuilder SetupWithBlazorSingleViewLifetime<TApp>()
+        public static AvaloniaBlazorAppBuilder UseBlazor<TApp>()
             where TApp : Application, new()
         {
             var builder = AvaloniaBlazorAppBuilder.Configure<TApp>()
-            .UseSkia()
-            .With(new SkiaOptions() { CustomGpuFactory = () => new BlazorSkiaGpu() })
-            .SetupWithLifetime(new BlazorSingleViewLifetime());
+                .UseSkia()
+                .With(new SkiaOptions { CustomGpuFactory = () => new BlazorSkiaGpu() });
 
             AvaloniaLocator.CurrentMutable.Bind<FontManager>().ToConstant(new FontManager(new CustomFontManagerImpl()));