ulmoBackport: removed hard-coded waffle flag checks for email and push notifications

[awais-ansari]

Issue
The flags SHOW_PUSH_CHANNEL and SHOW_EMAIL_CHANNEL explicitly check for the string 'true'. As a result, the Boolean value True was incorrectly treated as an "off" state due to this hard-coded check. Waffle flags should operate as Boolean values instead. It will cause any community instance that uses a Boolean value.

• SHOW_PUSH_CHANNEL: process.env.SHOW_PUSH_CHANNEL === 'true'
• ...(getConfig().SHOW_EMAIL_CHANNEL === 'true' && { EMAIL: 'email' }),

Fix
The logic for the waffle flags in the account MFE has been corrected. If a flag is empty, missing, or not available in the config, it is now considered false. Any flag with a non-empty string value is considered true.

For Example

• If SHOW_PUSH_CHANNEL = '', it will be treated as the flag being off.
• If SHOW_PUSH_CHANNEL = 'true', it will be treated as the flag being on.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.63%. Comparing base (cab1a24) to head (6af95e4).
⚠️ Report is 1 commits behind head on release/ulmo.

Additional details and impacted files

@@               Coverage Diff                @@
##           release/ulmo    #1387      +/-   ##
================================================
+ Coverage         68.25%   68.63%   +0.37%     
================================================
  Files               120      119       -1     
  Lines              2372     2359      -13     
  Branches            655      654       -1     
================================================
  Hits               1619     1619              
+ Misses              707      694      -13     
  Partials             46       46              

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[farhaanbukhsh]

We should make similar changes in https://github.com/openedx/tutor-contrib-notifications/blob/main/tutornotifications/patches/mfe-lms-production-settings so that it is inline with notification enabling plugin. cc: @bmtcril

Added openedx/tutor-contrib-platform-notifications#31