Remove RADIUSS links from the navbar and other parts of the application
We aren't planning on using RADIUSS or anything similar in our application, so we should remove all references to it in the application.
At the moment, clicking on RADIUSS
in the navbar will take a user to a 404 page. We want all references to RADIUSS, specifically any 404 links, removed from the application.
(Note: at the moment, don't worry about removing RADIUSS references from the JSON files, we'll tackle that later)