This commit updates the Info messages on the course page to display
more informative messages to the user. Specifically, messages for Public
and Invitation-only courses.

OSPR-2818 - Add Contact Us form customization options (BB-548)

SE-800 Wraps the email header in a block so it can be themed

Handle out-of-memory exception on Sysadmin Courses

We've been running into OoM issues with this functionality while
executing on one of our smaller application servers.
- Sometimes this manifests by preventing the entire page from loading
  (exception during the GET).
- At others, it occurs using the `Delete course from site` functionality
  by breaking during the POST handler. This case is particularly
  frustrating because the course actually is deleted, but looks like it
  may not have been. Internally, this is because the 500 error occurs
  _after_ the course has been successfully deleted, though this is
  opaque to the end-user.

While this doesn't address the underlying memory issue,
it does at least allow the app to recover gracefully.

Revert PR 19881 - "Improve 403 error handling"

Convert (Email Change Confirmation) message to edx-ACE

fix course program cache

Added logs

Basically, this was done by:
1. Adding new class type in [common/djangoapps/student/message_types.py]
2. Adding new files for the ace template in a new directory named
    [common/templates/student/edx_ace/emailchangeconfirmation]
3. Removing old template files
    [confirm_email_change.txt] and [email_change_subject.txt]
    from the directories:
    [lms/templates/emails] and
    [common/test/test_sites/test_site/templates/emails]
4. Converting the [confirm_email_change] code to use [ace.send()]

Improve 403 error handling

adding logs to investigate cache.

learner-6943

Revert "LEARNER-6945 Populate software secure photo verification"

This reverts commit 019f6c4d.

ENT-1591: Validate Recovery Email a Primary Email

Add path to linter unittests to testing environment

Updated edx-proctoring to 1.5.15

Add IDV bypass mechanism for bok_choy tests

Currently, ajax calls in courseware is handling 403 like 401.In this
PR, proper modifications have been done to make it coherent with its
intended behaviour.

LEARNER-7131

Segregate learner account settings strings.

Added logs

This would let the team order translations for the beta language message
to ensure that it remains translated for a wide set of partially supported
languages.

LEARNER-4304

[BB-728] Add problem response report API

An older test was deleted based on flakiness around the ID
verification process; this test eliminates the dependency on IDV by
enabling manual ID verification (an enterprise-motivated workaround
for IDV requirements) via the auto_auth endpoint.

JIRA:EDUCATOR-1178

Reduce xsslint thresholds.

Update translations

Add skip-authorization flag for DOT application creation.

add course to program caching

Merge pull request #19847 from edx/testeng/bokchoy_auto_cache_update_e403eee0109f7f5f12f75aded566044bb302816b

Bokchoy db cache update

Bugfix: Text Input problem type expects numeric answer when correct answer starts with a number

Added master's track

Improve SafeCookieData Error Logging