Add setting to disable domain warnings (#13954)

* Add appsetting and return if domain warning are disabled

* Fix unit tests

* Add default value

---------

Co-authored-by: Zeegaan <nge@umbraco.dk>

tests/Umbraco.Tests.UnitTests/Umbraco.Web.BackOffice/Controllers/ContentControllerTests.cs

@@ -4,9 +4,11 @@ using System.Globalization;
 using System.Linq;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Options;
 using Moq;
 using NUnit.Framework;
 using Umbraco.Cms.Core.Actions;
+using Umbraco.Cms.Core.Configuration.Models;
 using Umbraco.Cms.Core.Dictionary;
 using Umbraco.Cms.Core.Events;
 using Umbraco.Cms.Core.Mapping;
@@ -266,7 +268,8 @@ public class ContentControllerTests
             Mock.Of<ICoreScopeProvider>(),
             Mock.Of<IAuthorizationService>(),
             Mock.Of<IContentVersionService>(),
-            Mock.Of<ICultureImpactFactory>());
+            Mock.Of<ICultureImpactFactory>(),
+            new OptionsWrapper<ContentSettings>(new ContentSettings()));
 
         return controller;
     }