Please do not leak token when error occurs in /ui dashboard

[Bluscream]

I know this dashboard is not supposed to be shown on stream but sometimes it happens that people accidentally tab into their dashboard's overview and in this case it would immediately reveal their token to everyone without even being in some kind of settings subpage.

Maybe make it replace the token with token=<REDACTED> or similar, or just remove it from the error message

[ioppermann]

Thanks for pointing this out. We will have look at it.