[devroom-managers] Pentabarf password field caching


I did make some changes a while ago to reduce the chance of this
happening, but just in case any of you still hit the problem:

Issue: Pentabarf complains that “passwords don’t match”.

Cause: Some browsers / password managers / browser extensions try to be
too clever and helpfully fill in the “password” field on the account tab
(which tends not to have focus). When you then click “save” Pentabarf
thinks you want to change your password but because your clever software
only filled in the “password” field and not the “repeat password” field,
this will fail.

Workaround: Select “show all” to make sure nothing is cleverly filling in
fields behind your back.