Add `MyProjectNameMenus.cs` for the app template

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.Web/Menus/MyProjectNameMenuContributor.cs

@@ -28,7 +28,7 @@ namespace MyCompanyName.MyProjectName.Web.Menus
 
             var l = context.GetLocalizer<MyProjectNameResource>();
 
-            context.Menu.Items.Insert(0, new ApplicationMenuItem("MyProjectName.Home", l["Menu:Home"], "~/"));
+            context.Menu.Items.Insert(0, new ApplicationMenuItem(MyProjectNameMenus.Home, l["Menu:Home"], "~/"));
         }
     }
 }

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.Web/Menus/MyProjectNameMenus.cs

@@ -0,0 +1,11 @@
+namespace MyCompanyName.MyProjectName.Web.Menus
+{
+    public class MyProjectNameMenus
+    {
+        private const string Prefix = "MyProjectName";
+        public const string Home = Prefix + ".Home";
+
+        //Add your menu items here...
+
+    }
+}