Fixes: #539

It is obsoleted by Profile.reports

This is to help troubleshoot 2FA issues without
running manual SQL queries.

Fixes: #536

PagerDuty Connect is deprecated and will be discontinued.
It is replaced by PagerDuty Simple Install Flow (see
README for setup instructions).

This is in preparation of adding an option for weekly
reports (#407)

Fixes: #512

When an account has a password, replace "Set Password"
button's label with "Change Password"

Fixes: #499

Cannot use functools.cached_property, as it was added in Py 3.8,
but we support 3.6+

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