Add register page, associated view model and successfully call service that just sends back received data

Program.cs

@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Components.Web;
 using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
-using blazor_mini_sandbox;
+using Sandbox;
+using Sandbox.Services.AuthService;
 
 var builder = WebAssemblyHostBuilder.CreateDefault(args);
 builder.RootComponents.Add<App>("#app");
@@ -8,4 +9,6 @@ builder.RootComponents.Add<HeadOutlet>("head::after");
 
 builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
 
+builder.Services.AddScoped<IAuthService, AuthService>();
+
 await builder.Build().RunAsync();