Make Primary Contact as Non-Editable on CX Contact Screen.

Summary:

We want to make all the Primary contact as non editable which are associated to an account from CX screen but the same Primary contact should be editable from the AR screen. This is applicable while we are updating the contacts. We are aware that this can be done via groovy but the issue here is we don't have any such field which is a differentiator  and which basically suggest the update is from CX or from AR Screen. We are aware about one field which is Created_by_Module which is a differentiator between CX and AR module but this is