Add the Customer Notes property to the Umbraco Commerce constants

[jemayn]

Which component is this idea for?

Umbraco Commerce (Core)

Describe your idea

I have a "comments" field in my checkout flow that I would love to end up on the order in the backoffice under the customer notes field:

It took me a while to work out that it could be set in the checkout flow by adding a property with the alias customerNotes.

I think it would be a good idea to add it under Umbraco.Commerce.Core.Constants where things like firstname, lastname and email are already set as constants that are then used within the backoffice.

Context

No response