AA-722: surface num_droppable assignments in MFE Progress Tab API

* Revert "Revert "fix: Stop rendering Visibility and Move buttons on libraries (#26885)" (#27113)"

This reverts commit 23443c43.

* fix: change method of accessing course id

fix: Add ‘ENABLE_HELP_LINK’ to Studio settings

If edxloggedin cookie is not present but the user is authenticated;
user is redirected to authn MFE and then back to dashboard instead
of the desired redirect URL (e.g. finish_auth) resulting in learners
not enrolling into the courses.

VAN-415

disbale xsslint

Removed tabindex="-1" from main element to fix accessibility issue
Description

Removed tabindex="-1"  from main
We had a strange issue where TalkBack wasn’t reading content in some xBlocks but was reading some others. I figured out that if you remove tabindex=-1 from <main>, TalkBack works as expected again. Tangentially, this breaks the old method of implementing SkipNav links. Further tangentially, the SkipNav links were already broken (or in this case redundant on mobile). @wittjeff  will file two separate issues after this one PR is merged — one  for a better way to implement SkipNav links for  Learning MFE, and one for a better / functional way to implement SkipNav links for Mobile.

How to reproduce
Go to [this unit](https://courses.edx.org/xblock/block-v1:W3Cx+WAI0.1x+3T2019+type@html+block@2eb3c86c479f44ba964f88ff0bfd9211) on mobile and turn on TalkBack. It will skip main content. For further information on testing go to [Jira Ticket](https://openedx.atlassian.net/browse/LEARNER-7858)

[BD-21] fix: TypeError in toggle state report view

Fixes an issue where the button that linked to edX documentation for
course teams in Studio that displayed beside the logged-in user's username/
drop-down menu is gone. Regression from PR #26106

Ref: TNL-8138

We were attempting to add course overrides twice to objects returned in
the toggle state report view. This was causing a TypeError (and thus a
500 error) because the second time, we were attempting to add entries to
an incorrect object.

This issue was not caught by unit tests because we were not testing the
view with WaffleFlagCourseOverride objects. This commit adds a unit test
to prevent future errors.

This is another fix for PR #27108.

Update edx-proctoring to 3.7.14

fix: upgrade edx-enterprise to 3.20.1 and edx-rbac to 1.4.2, so that JWT role/context pairs are de-duplicated.
ENT-4357

Bump frontend-enterprise

This commit adjusts a few values in our discussions configuration APIs to make them match what the frontend needs, as well as to more accurately reflect the providers available today.

- The `active` provider ID is expressed as None if it doesn’t exist
- The “cs_comments_service” provider has been renamed “legacy” - when we implement the new discussions micro-frontend, we’ll also have a separate provider for that, so they can’t both be “cs_comments_service”.  Also, cs_comments_service is such a bad name for anything.
- The hard-coded providers list in get_supported_providers now includes ‘legacy’ and ‘piazza’, our two known providers.  This list will be updated as more known providers come online.
- The PROVIDER_FEATURE_MAP has similarly been updated.

Part of this task: TNL-8093

* Commits:
  feat(jsinput): Allow JSInput problems to create downloads

Fixes bug introduced by #25965 (commit dd96a2) pointed out in:

  https://github.com/edx/edx-platform/commit/dd96a2#r48570091

The next button redirect at the top of the sequence in Studio's Unit editing view
was not going to the correct location.

This reverts commit 777bb633.

BREAKING CHANGE: Remove WaffleSwitchNamespace, WaffleSwitch, WaffleFlagNamespace,
and WaffleFlag from waffle_utils, in favor of the Legecy* classes
in edx-toggles. Although this is a breaking change, we have
preemptively removed all known uses.

BD-21

* temp: remove false positives on safe sessions middleware

This is a temporary fix to deal with false positives in the system due
to the masquerading feature.  Long term we may not want to rely on
knowing about how masquerding works in the safe sessions middleware and
instead manage masquerding of the requset user in some other way.

Co-authored-by: Robert Raposa <rraposa@edx.org>

* MST-682 Add external_user_key to the student profile CSV
This is a request from some Masters school partners. They would like to download the student enrolled list with the Masters external_user_key data referenced. This way, the schools can properly match the students enrolled in the course with the students enrolled through Masters enrollment system

We're fixing an error that appears when you click the "edit access"
button on an XBlock in the library page.

Libraries in the "Add library" page shouldn't have the accessibility
config icon. Access settings for libraries are changed at the top, on
Settings > User Access. When clicking the access-button (the cog) on a
Library, an error appears. This is known to happen on koa.master and
open-release/juniper.3.

This happens due to the way XBlocks are rendered; as they get rendered
initially, the previews are unaware of whether they're part of a
library. We can confirm this by refreshing the page, this makes the
button disappear.

This fix removes the cogwheel when the XBlock is part of a library.
This doesn't affect the XBlocks imported to courses because those are
rendered on a Randomized Content XBlock, which does have its access
options.

Authored by: Daniel Francis <daniel.francis@opencraft.com>

Merge pull request #23457 from open-craft/agrendalath/bb-2063-fix-marking-blocks-as-completed-on-course-outline-page-upstream

[BB-2063] Calculate completion for custom blocks on the Course Outline page

For now only the discussion blocks were supported. If we had a custom XBlock that specified `completion_mode = XBlockCompletionMode.EXCLUDED`, then it could never be marked as completed on the course outline page, despite being marked as such inside the learning sequence.

This adds support for displaying completion on the course outline page, to remove the discrepancies between this view and the learning sequence. It also simplifies course outline page by reusing existing APIs for determining completion state and finding the "Resume block"'s target.

* Fixed Html escaping in course name in API

Allow `get_proctoring_escalation_email` to use a course key object

MICROBA-923

docs: updates ticket links for block structure settings and toggles