Add some tests to ensure the enforcement works correctly on Namespace.
The "blocked" message can be the same for PageRestriction and NamespaceRestriction.
Future messaging concerns:
Mobile Web can show the same "blocked" message for PageRestriction or NamespaceRestriction.
In the future, we may make the Web version give the user more specific information.
Things to Ensure:
- If User:Apples is blocked from User_talk then the Prevent this user from editing their own talk page while blocked takes precedence regardless if it is true or false