Prevent 500 error when viewing malformed unit page

Updates notes client name and API url for compatiblity with devstack.

PROD-1026

log section and subsection information during URL retrieval failure

Resubmit Photo-Verification button must appear in approval box.

Currently, Resubmit photo-verification button is not been displayed
inside the approval box on dashboard.In order to allow a learner to
resubmit before expire it must be displayed in it.

ARCH-1253: add more temporary login custom metrics

- add login_user + third party auth (tpa) metrics

This is in service of ARCH-1253 clean-up of login.

ARCH-1253

- add temporary custom metrics for shim_student_view.
- remove some pointless tests.

This is in service of ARCH-1253 clean-up of login.

ARCH-1253

Move RegistrationValidationView into user_authn.

Python Requirements Update

version bump edx-enterprise to 2.0.23

Move generate_password to user_authn.

force @edx.org users to login through their google account

then user must login through `edx.org` Google account

ENT-2461

DEPR-52

Merge release back to master

This management command will help us support migrating an SSO provider
from one configured user identifier to another, which may be necessary
when previous choices of UID aren't as stable as needed.

JIRA:EDUCATOR-4701

Move get_login_session_form to user_authn.

Revert "[wip] stop bucketing into discount experiment a week before cyber monday"

ENT-2346: Version upgrade for edx-enterprise