Make all templates as consistent as possible with stock MVC Core 2.0 one

templates/ReactSpa/Controllers/HomeController.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
@@ -15,6 +16,7 @@ namespace WebApplicationBasic.Controllers
 
         public IActionResult Error()
         {
+            ViewData["RequestId"] = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
             return View();
         }
     }