Allow plugins to update contexts in specific views

Fix link for ad blocker.

Remove/Limit log.info

* Reenabling this since the renames on the schedules table are completed

* Reverting regex change that caused migration to be generated for userprofile

We sometimes update preexisting SAML SSO providers to configure them
to automatically create SSO identity verification (IdV) records when a
learner links an account via that provider. Turning that configuration
from off to on does make it such that when learners log back in via
their linked account, a new IdV record will be created for them. But
it's possible we'd want this process to happen more automatically and
seamlessly, for which this management command will be helpful.

Note that this does not help with removing SSO verification records
for a provider for which this configuration has been turned off.

JIRA:EDUCATOR-4947

EDUCATOR-4903. Move defaults to correct place - cr

Show number of problems in outline

AA-73 courseware nonetype error

- ensure logic for displaying reset dealines banner in courseware
  is behind the relative dates waffle flag, only shows if the
  course is self paced, and handles the situation where no
  sequentials exist.

Specifically, the number of 'problem' blocks that are graded, in
a given subsection. Also shows an icon next to the subsection if so.

AA-45

* Don't disable download button after click

* Allow reuploading for team membership CSV

Configuration model added for account recover command

* MICROBA-253 add phone number field api for coaching plugin

* Remove hardcoded value

* Requested changes

* Add logger to models_api.py for student
* Import model with underscore to prevent exporting
* Moved return outside of try/catch block

* Add docstring

* whitespace

* Change upload div to a button for focus styling

* Fix team membership button resize on focus

* Remove box shadow from focus styling

* Upgrade frontend-enterprise and pass in user

ENT-2648

* Add react-router-dom

* Add back caret

* correctly resolve teamset-level and course-level max_team_size

Fix error in experiment tracking

Explore new courses links gets
disabled by ad blocker. Changing
class name to bypass this.

PROD-1348

ENT-2580| better exception handling

ENT-2580 | printing only id for failed enterprise course enrollments

If the user is not logged in, the ExperimentWaffleFlag code was
raising an exception when trying to send an event to segment.

This is a quick fix to ignore anonymous users.

[REV-1119] Enable first purchase discount for all eligible users

AA-51: Adds in 'Up next' banner to course home

Not fully cleaning up the holdback code yet since the follow on first purchase discount tests may make use of it
REV-1119

Allow one letter extra fields