On student dashboard currently there was currently no main region landmark.
So added the role with the main conents of the dashboard.

TNL-1567

Users who are blocked from enrolling in a course
due to an embargo are redirected to the blocked
message page after authentication completes.

fieldset element was unnecessary and input fields were not
associated with their parent label

TNL-1076

* updating vendor files
* updating class syntax (to new FA-based classes) for all UI elements
* correcting broken tests

WL-172 Show a Order History list on the Student Dashboard for any PaidCourseRegistration or RegCodeItem that the user might have purchased

Change third party auth login failure code to a 401, to detect authentication
success with no linked account.

If already authenticated, redirect immediately to the dashboard.

Use "Location" header correctly for 302 redirects from student views.

Add utility functions for simulating a running third-party auth pipeline.

Add a utility function for checking whether third party auth is enabled.

Respect default values sent by the server

Make HTML comments Mako comments

Make donations configurable

Added donation button to dashboard

Generalize merchant defined data for payment processor

Change the reverification failure message styling.

Changing templates so new styles do not appear in courseware.

Removing unused aria tag.

PR comments on cleaning up SASS

Fix signup LMS test.

Copy changes per review on PR

Updating based on PR comments

Style and HTML changes for notifications

The body of the enrollment message template

Tokenize platform name in message.

Changing to a datetime enrollment approach

Adding sorting. A little refactoring.

Adding confguration model for time delta

Adding admin registration and basic form for new config model.

Fixing docstring typo

Updating default time delta to 0, adding test to show it disabled functionality.

Removing the form from configuration and tweaking the enrollment message html

[LMS-11372]
[LMS-11370]

This reverts commit 1955aade36675289bdbc01554b6f74242754a746.

Updating EX-60 logic

Add little more logic for paid courses

LMS-2510

* Don't show sidebar if only one language is present
* only add in the default language code if it's not already present