DEPR-140 MICROBA-985

fix: Clean up old errors from certificate records now in `downloadable` status

[AA-721] Add necessary data for new progress page

* Commits:
  feat: Add support for legacy discussions settings to API
  test: Add CourseFactory to discussions API tests

* Change order of object Manager declarations in the GeneratedCertificate model. Declaration order matters and It appears that having the "base" `objects` declaration after the other Custom Managers creates an issue where I cannot access `objects` in a migration without this change.
* As part of the manager migration there is a cleanup function that resets the `error_reason` field to an empty string for all certificates in the `downloadable` state that currently have an error listed in the record.

perf: move notify_credentials to a celery task

* fix:  Correctly check that saml provider is available using tpa_hint in next param

This fixes the issue of 404 when an enterprise customer sends a tpa_hint in next, but that param is not correctly checked to disable auth MFE. The hinted login page now works with this change.

ENT-4383

* feat: comment update

comment update

ENT-4383

* Commits:
  feat: Hide lti_configuration from non-LTI discussions providers
  fix: Update discussions lti_configuration during provider_type change
  feat: Add helper for discussions configuration to indicate feature support
  refactor: Remove superfluous dict comprehension

MICROBA-1106

By "useless" due dates I'm specifically talking about due dates which
are erroneously set in the course strucutre, but which don't matter
because the entire course is self-paced, rather than instructor-paced.

JIRA:EDUCATOR-5713

MICROBA-1106

Updated account view to accept application/json for the post request.

refactor: removing Sphinx constraint.

Python Requirements Update

BOM-2191

pin pyjwt<2.0.0 version
pin social-auth-core<4.1.0

[MST-740] Toggle verification approved emails from ACE

Before this change, the notify_credentials management command ran for
about 10-15 minutes and occasionally overlapped with an edxapp
deployment which would cause the machine the command was running
on to die. The command ran through a bunch of certs and grades, and then
spun off celery tasks to send the relevant data to credentials.

Now, most of the logic of the notify_credentials management command has
been moved into a new celery task, so that combing through longs lists
of certs and grades is done asynchronously. This task then spins off the
original data-sending tasks as before.

Note that this requires a change in alerting: where the jenkins job
would previously notify us about failures, we need to know when this
new celery task fails for any reason. We’ve made this a LoggedTask
so that failures will be logged to Splunk and alerting can be built off
of the error messages.

This commit also moves the relevant tests.

MICROBA-963

fix: AA-646: Fix is_staff_user check to check for course staff

feat: AA-741: Enables the dates tab for all enrolled learners

docs: Add doc for recent cert revocation changes

Synchronously registering proctored exams while saving content to studio is causing a significant slow down. The function that registers the exams has been moved to an async task. In addition, a signal handler on_course_publish has also been moved to the async task, as it relies on exam registration being complete before being executed.

This PR might be causing e2e tests to fail. Reverting and merging without waiting on tests.

feat: Add new data to course home and progress endpoints to support the progress page certificate status component
AA-719

This was to support an experiment in using coverage test contexts to
record what tests ran each line of code (informally known as
who-tests-what, or wtw).   It never became operational.

[MICROBA-1080]
- Add additional context in the `invalidate` and `mark_notpassing` functions related to recent work

Add country code in MFEAppContextView

It was checking for global staff, but really only needed to check
for course staff. This corrects the check.

add new api MFEAppContextView to handle country code
add unit test MFEAppContextViewTest
this newly created api will be marged in TPAContextViewTest when margeing code in master branch

VAN-366