fix: display support and programs in nav only if they are configured

[dcoa]

Sumac backport of:

• fix: display SUPPORT_URL only if is configured #469
• fix: display programs nav button only if it is configured #506

[openedx-webhooks]

Thanks for the pull request, @dcoa!

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.40%. Comparing base (08d47dd) to head (c6891ef).
Report is 2 commits behind head on open-release/sumac.master.

Additional details and impacted files

@@                    Coverage Diff                     @@
##           open-release/sumac.master     #507   +/-   ##
==========================================================
  Coverage                      97.40%   97.40%           
==========================================================
  Files                            157      157           
  Lines                           1385     1389    +4     
  Branches                         228      231    +3     
==========================================================
+ Hits                            1349     1353    +4     
  Misses                            34       34           
  Partials                           2        2           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jsnwesson]

I'll hold off on merging this (if indeed the wait is on Aperture) so that anyone from AXIM can review and approve this backport.

[itsjeyd]

I'll hold off on merging this (if indeed the wait is on Aperture) so that anyone from AXIM can review and approve this backport.

CC @openedx/axim-engineering ⬆️

[farhaanbukhsh]

👍

• ✅ I tested this on Tutor devstack for Sumac
• ✅ I read through the code
• ❌ I checked for accessibility issues
• ✅ Includes documentation
• ❌ I made sure any change in configuration variables is reflected in the corresponding client's configuration-secure repository.

[deborahgu]

I'll go ahead and merge. In the future, @dcoa, could you make individual backport PRs for each master PR, just to make reviewing easier? Thanks!