Opencraft/edx platform/devan/show enroll links on public courses only if self enrollment allowed

[DevanR]

This PR changes the logic for displaying enroll messages on the course home page.
With this change, public courses will show "Enroll" links only if self-enrollment is allowed

Discussions: Link to any public dicussions about this PR or the design/architecture. Otherwise omit this.

Screenshots:
View when User is unenrolled for Public Outline course (invite-only), before change.

View when User is unenrolled for Public Outline course (invite-only), after change.

View when User is unenrolled for Public course (self-enrollment allowed), before change.

View when User is unenrolled for Public course (self-enrollment allowed), after change.

View when User is anonymous for Public course (self-enrollment allowed), before change.

View when User is anonymous for Public course (self-enrollment allowed), after change.

Sandbox URL:
Studio:https://studio-pr19837.sandbox.opencraft.hosting/
LMS:https://pr19837.sandbox.opencraft.hosting/

Merge deadline:"None"

Testing instructions:
Contains 2 courses:

[edX Demo Course] has seo.enable_anonymous_courseware_access course waffle flag, and the "Advanced Settings > Course Visibility For Unenrolled Learners" set to public_outline and the "Advanced Settings > Invitation Only " set to true.
https://pr19837.sandbox.opencraft.hosting/courses/course-v1:edX+DemoX+Demo_Course/

[Test Course] has seo.enable_anonymous_courseware_access course waffle flag, and the "Advanced Settings > Course Visibility For Unenrolled Learners" set to public and the "Advanced Settings > Invitation Only " set to false.
https://pr19837.sandbox.opencraft.hosting/courses/course-v1:opencraft+test01+2019_T1/

Go to LMS
Sign in
View the edX Demo Course course page
You should not see an Enroll message

Go to LMS
Sign in
View the Test Course course page of the public course you've created
You should see an Enroll message

Open the same link in an anonymous browser
You should not see an Enroll message

Reviewers

• (OpenCraft internal reviewer's GitHub username goes here)
• Pooja Kulkarni (pkulkark)

[openedx-webhooks]

Thanks for the pull request, @DevanR! I've created OSPR-3156 to keep track of it in JIRA. JIRA is a place for product owners to prioritize feature reviews by the engineering development teams.

Feel free to add as much of the following information to the ticket:

• supporting documentation
• edx-code email threads
• timeline information ("this must be merged by XX date", and why that is)
• partner information ("this is a course on edx.org")
• any other information that can help Product understand the context for the PR

All technical communication about the code itself will still be done via the GitHub pull request interface. As a reminder, our process documentation is here.

[edx-status-bot]

Your PR has finished running tests. There were no failures.

[natabene]

@DevanR Thank your for your contribution. Sorry, I am a bit confused, can you let me know if this PR is different from this one: https://github.com/edx/edx-platform/pull/19837 ?

[DevanR]

@natabene Apologies for the confusion. I was having some issues squashing my commits, hence the other PR. I've since made the required edits to this PR. Please ignore the new PR.

[pomegranited]

@DevanR Could you close this PR if it's no longer needed?

[openedx-webhooks]

@DevanR Even though your pull request wasn’t merged, please take a moment to answer a two question survey so we can improve your experience in the future.