Fixed unauth issue by removing auth requirement on publisher endpoint

Created by: RobinKavPA

This public endpoint only exposes the following info:

• publisher name
• publisher DAR pre-submission modal content
• publisher allows/does not allow messaging

None of this info is sensitive and is required for this page to operate properly when a user has not signed in yet.

We will need to revisit this if the publisher data model is extended to include sensitive data.