Updated Host sites to disable includeStaticFiles

By passing the `includeStaticFiles` argument in `MapTopicErrors()` (b591bd7), we are effectively disabling `includeStaticFiles` in the corresponding `ErrorController.Http()` action (83f4691). While `includeStaticFiles` defaults to true, since it's the intuitive baseline, we expect most implementers will want to disable it, and thus have made it the standard in the boilerplate `Host` file. Adding it to the integration tests' `Host` will allow us to follow-up with an integration test of the Feature #101 functionality; see next commit.

Author: JeremyCaney

OnTopic.AspNetCore.Mvc.Host/Program.cs

@@ -53,8 +53,8 @@
 /*------------------------------------------------------------------------------------------------------------------------------
 | Configure: Error Pages
 \-----------------------------------------------------------------------------------------------------------------------------*/
-if (!app.Environment.IsDevelopment()) {
   app.UseStatusCodePagesWithReExecute("/Error/{0}/");
+if (!app.Environment.IsDevelopment()) {
   app.UseExceptionHandler("/Error/500/");
   // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
   app.UseHsts();
@@ -77,7 +77,7 @@
 app.MapDefaultAreaControllerRoute();                            // {area:exists}/{controller}/{action=Index}/{id?}
 app.MapTopicAreaRoute();                                        // {area:exists}/{**path}
 
-app.MapTopicErrors(rootTopic: "Error");                         // Error/{statusCode}
+app.MapTopicErrors(includeStaticFiles: false);                  // Error/{statusCode}
 app.MapDefaultControllerRoute();                                // {controller=Home}/{action=Index}/{id?}
 app.MapTopicRoute(rootTopic: "Web");                            // Web/{**path}
 app.MapTopicRoute(rootTopic: "Error");                          // Error/{**path}

OnTopic.AspNetCore.Mvc.IntegrationTests.Host/Startup.cs

@@ -95,7 +95,7 @@ public static void Configure(IApplicationBuilder app) {
       | Configure: MVC
       \-----------------------------------------------------------------------------------------------------------------------*/
       app.UseEndpoints(endpoints => {
-        endpoints.MapTopicErrors();
+        endpoints.MapTopicErrors(includeStaticFiles: false);
         endpoints.MapDefaultAreaControllerRoute();
         endpoints.MapDefaultControllerRoute();
         endpoints.MapImplicitAreaControllerRoute();