JIRA:EDUCATOR-5112

This is intended for use in the Studio OAuth transition (ARCHBOM-1887) but
may be useful in the future as well.

Reverting because of errors seen in proctoring. The error from splunk:

 File "/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/edx_proctoring/views.py", line 590, in get
    data['onboarding_release_date'] = effective_start.isoformat()
AttributeError: 'NoneType' object has no attribute 'isoformat'

The effective date is coming from learning_sequences, which ultimately
comes from edx-when.

refactor: Use post_delete for date override

Feature: Add permissions filter to courses API [SE-4588]

chore: upgrade edx-enterprise to 3.28.2

created CustomPagesCourseApp class

feat: created custom pages course app plugin

created CustomPagesCourseApp class
added CUSTOM_PAGES_HELP_URL to lms and cms settings
added entry point to setup.py

feat: added toggle to ENABLE_CUSTOM_PAGES in lms and cms settings

feat: removed the option to enable/disable the availability of custom pages course apps.

* feat!: Add data model for course app API
The current course apps API makes individual queries to determine if a course app is enabled, which can be inefficient. With this change we now have a Django model that contains this information, allowing us to make bulk queries about all the course apps for a course in the API.
It also adds a new signal handler that initialises the status of all course apps in a course on course publish.

* Use celery tasks and a management commands to make cache async

* Review feedback

* update log messages
use separate celery task for each course task

- moved send_activation_email to user_authn app
- registered task under both new and old name
- exposed the old name for task invocation

VAN-417

The new filter, called `permissions`, allows callers to filter courses
per access granted to the specified username.  Callers can now filter
courses per roles, actions, etc.

chore: upgrade edx-name-affirmation to 0.9.1

REV-2133

* fix: [AA-950] Add unit test to verify segment called correctly

Add positive and negative test
Moved flag update to same block as segment
Moved WaffleFlag check to can_show_streak_discount_coupon for consistency

* feat: [AA-940] Remove split_test from Masquerade dropdown
Filter content groups that are not part of a cohort from the selection
available to the select in the Masquerade bar.

Refs AA-940

Co-authored-by: cdeery <cdeery@edx.edu>

chore: Updated lms and cms settings

Profile images don't load in the devstack since the path for media files is
broader than the path for profile images, reorderig them fixes this.

fix: Replaced '&#39' with '&#x27' to prevent tests from failing on Django 3

Use new version of edx-when.

chore: Removed django.utils.six as not supported in Django3

* chore: Updating Python Requirements

* fix: two tests failing due to different query count.

Co-authored-by: Awais Qureshi <awais.qureshi@arbisoft.com>

feat: Add breadcrumbs for textbooks screen

This is probably the least-disruption approach we can reasonably manage.

Also fix formatting in nested list.

This mirrors a fix in
[frontend-app-library-authoring](https://github.com/edx/frontend-app-library-authoring/pull/25/files#diff-4102b1726b612b7813106191ef87849273f5d89da904f5ab69fb1974a31987d5R307).

* fix: [AA-950] Fix gating feature from WaffleFlag

Streak Discount was being offered for non-verified courses

chore: Removed django.utils.lru_cache

refactor: move course location util to common djangoapp instead of xm…

fix: bump the git tag of edx/django-ratelimit-backend fork to fix test failures in Django30 (#28578)

course outline, which don't need block dates below the subsection level of a course.
Pass the course's published version to all the appropriate places where edx-when's API
is called - to allow edx-when to more efficiently cache queried/processed results.

TNL-8061