More tests and WIP vibe work

Chrono/Standalone/Program.cs

@@ -10,6 +10,7 @@ builder.RootComponents.Add<HeadOutlet>("head::after");
 builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
 builder.Services.AddTelerikBlazor();
 builder.Services.AddSingleton<CardRenderingService>();
+builder.Services.AddScoped<CardPreviewService>();
 builder.Services.AddScoped<AnalyticsService>();
 
 await builder.Build().RunAsync();