2.5.2 logout prompt when not enabled

[Mr_JinX]

I've noticed an issue with the 2.5.2 release where after a user authenticates with the captive portal they are given a logout button even though the option is not enabled in the Pfsense config

Tested in Chrome version 91.0.4472.124, on Windows 10

Note: it also says "redirecting to" behind the logout button, which i dont have any redirection enabled.

After I add a redirection URL the logout button now doesn't appear and users are taken to the company website, however, pre 2.5.2 users would get the captive portal, accept T&C's then carry on to the original page they requested,