How can we hide the Personal category in the Explore page?

Summary:

We would like to hide the "Personal" journey category from displaying on the Explore page.

We have removed the "Create Journey" button from Employees and Line Managers by removing the "Manage Personal Journeys" function security policy, as our organisation would like to retain greater control of the Journeys that are deployed on the system.

However the "Personal" category is still visible and is the default category when Employees open the Explore page. As there are no Personal Journeys available employees get the error message below when they first enter the page.

Can we hide this category? Or could another one set as the default landing page to improve usability?