refactor: Use certificates api method instead of the model, and rename whitelist to allowlist. Also move method to certificates app to prevent circular import. (#27532)

MICROBA-1021

This change causes the activation link that’s emailed to a newly-registered user
to utilize a next query parameter. The impetus for this change is an edX Enterprise use-case:
we'd like newly registered Enterprise Customer admins and learners
to be directed to the Enterprise Learner Portal (or Admin Portal) upon account activation.
This is likely a broad enough use case to be valuable in other endeavors.

ENT-4522: Updated edx-enterprise to 3.22.16

ENT-4522: chore: upgrade edx-enterprise to 3.22.15

refactor: Switch to using course_overview start and end everywhere

* Commits:
  tests: Add data tests for Discussions API
  fix: Improve validation in Discussions API

Closes stvstnfrd/openedx-meta#3
Closes CENG-58
Closes TNL-8230

* feat: Use forked RG version of edx_proctoring in devstack

* Add waffle flag for special exams for mfe (#2371)

* feat: add waffle flag for special exams for mfe

* fix: waffle flag name, add coma to imports

Co-authored-by: Vladas Tamoshaitis <vladas.tamoshaitis@raccoongang.com>

* fix: revert requirements for master branch

* fix: revert dev requirements

* fix: trailing comma after imported item

* feat: add special exams waffle flag test

* fix: use ENABLE_SPECIAL_EXAMS global settings flag

* fix: toggle description

* fix: naming of waffle flag helpers to reflect relation with mfe

* fix(tests): assertion operators order

Co-authored-by: Sagirov Eugeniy <sagirov19@gmail.com>
Co-authored-by: Sagirov Evgeniy <34642612+UvgenGen@users.noreply.github.com>
Co-authored-by: Vladas Tamoshaitis <vladas.tamoshaitis@raccoongang.com>

refactor: Remove use of modulestore in certificates app (cont)

refactor: latest Django 2.2.21 breaks the tests.

CTA dialogue added

In DE-1822, we believed we needed to switch to start_date and end_date.
It was determined this was not the case, so this updates the comment
to ensure future users use the correct fields (start and end) and
updates any pieces of code that may have used start_date or end_date.

Python Requirements Update

[MST-723] Include proctoring escalation email in course validation

Its mostly due the more restriction on empty file names and paths with dot segments during uploads

We already had function traces to see how long each processor took when
generating a UserCourseOutlineData. This adds a similar tracking around
making a UserCourseOutlineDetailsData, to help track down performance
issues observed in what I think is the special exams processor.

feat: Add REST endpoints for problem response report generation that can be driven by MFEs. (#27313)

chore: upgrade edx-enterprise to 3.22.14

Update the styling and verbiage used in the course upgrade sections of the course dashboard cards.

feat: drop unused EmailMarketingConfiguration model