feat: display the certificate available date if configured in progres tab

[dcoa]

This Pull request aims to enhance the user experience by displaying the certificate_available_date in the progress tab > Certificate Status information if this has been configured and the course has not been complete yet.

Changes

• Add the new certificate status in the CELEBRATION_STATUSES array.
• Update the default message validating the certificate_available_date and using it if it is set (otherwise use the end course date).

Important

This PR depends on openedx/edx-platform#36790

Testing instructions

• Enable the certificates.auto_certificate_generation waffle switch
• Create a course with certificate mode (e.g. honor)
• Configure a certificate available date in Studio entering in Course > Settings > Schedule & details
• Enroll a learner in the course
• Visit the progress tab and check the date in certificate status is the same as the one that you set (for this you will need the backend changes specified above)

If certificate available date is set

If certificate available date is not set

[openedx-webhooks]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.41%. Comparing base (b6c29df) to head (556ceea).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1715   +/-   ##
=======================================
  Coverage   90.41%   90.41%           
=======================================
  Files         343      343           
  Lines        5779     5779           
  Branches     1387     1388    +1     
=======================================
  Hits         5225     5225           
- Misses        535      537    +2     
+ Partials       19       17    -2     

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[angonz]

Looks good to me!

[itsjeyd]

@dcoa Thank you for this contribution!

On the corresponding edx-platform PR (openedx/edx-platform#36790) I saw your note about the changes fixing an existing issue reported by BTR (openedx/frontend-app-authoring#2051). So even though the two PRs impact user-facing behavior, I'm assuming they won't need to go through product review.

If I misunderstood please let me know.

CC @mphilbrick211