[AC 480]Add the organization name to the stripe invoice (#2772)

* Adding organization name on subscription and update

* Changes after running  dotnet format -v diag

* Change the OrganizationName to GetName

* Change GetName to OwnerName

* Change the OwnerName to SubscriberName

* Reverting the changes made by dotnet format-v diag

* Removing extract space

* resolve the lint issue

* Fix whitespace formatting issue

* Resolving pr comment on changing organization

* Fixing the failing test

* Using the ISubscriber interface for consistent

* fixing the whitescapes

* Resolving the PR comments

* resolving the whitespace format

* Remove unnecessary directive

* Resolving the whitespace issue

* changes for organization instead of subscriber

* resolving the failing test

* Resolve lint issue by removing unnecessary directive

* Resolve the PR comment

* remove these blank lines

* Fixing whitespace formatting

src/Core/Entities/User.cs

@@ -84,6 +84,11 @@ public class User : ITableObject<Guid>, ISubscriber, IStorable, IStorableSubscri
         return Name;
     }
 
+    public string SubscriberName()
+    {
+        return string.IsNullOrWhiteSpace(Name) ? Email : Name;
+    }
+
     public string BraintreeCustomerIdPrefix()
     {
         return "u";
@@ -104,6 +109,11 @@ public class User : ITableObject<Guid>, ISubscriber, IStorable, IStorableSubscri
         return true;
     }
 
+    public string SubscriberType()
+    {
+        return "Subscriber";
+    }
+
     public Dictionary<TwoFactorProviderType, TwoFactorProvider> GetTwoFactorProviders()
     {
         if (string.IsNullOrWhiteSpace(TwoFactorProviders))