Feature/update net 5 (#487)

* Updated ApplicationCore to net 5

* Updated Infrastructure project to net 5

* Updated BlazorShared project to net 5

* Updated PublicApi project to net 5

* Updated Web mvc project to net 5

* Updated BlazorAdmin project to net-5

* Updated FunctionalTests to net 5

* Updated UnitTests project to net 5

* Updated IntegrationTests project to net 5

* Fixed CSS specific bug in BlazorAdmin project

* Updated github action worflow yaml

* Changes the name to only .NET

* Removed hardcoded minor version from github action workflow.

* Removed commneted code.

* Removed minor versions from the docker file

* Updated dotnet-ef tool version configuration to net-5

* Removed old migration plans

* Added net5 migration plans

* Updated infrastructure projecti setting.

* Removed database error page related configuration

* Removed commented package.

src/Web/Startup.cs

@@ -161,6 +161,8 @@ namespace Microsoft.eShopWeb.Web
             services.AddScoped<HttpService>();
             services.AddBlazorServices();
 
+            services.AddDatabaseDeveloperPageExceptionFilter();
+
             _services = services; // used to debug registered services
         }
 
@@ -189,8 +191,8 @@ namespace Microsoft.eShopWeb.Web
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();
-                app.UseShowAllServicesMiddleware();
-                app.UseDatabaseErrorPage();
+                app.UseShowAllServicesMiddleware();                                
+                app.UseMigrationsEndPoint();
                 app.UseWebAssemblyDebugging();
             }
             else