feat(ui): Apply LaunchDarkly Feature Flags to ABP MMDL and CHIP Eligibility Pages and Cards

[andieswift]

Story: https://jiraent.cms.gov/browse/OY2-31722
Endpoint: https://d324rgo243013q.cloudfront.net/

Details

Wrapped the ABP MMDL and CHIP Eligibility cards in launch darkly flag: mmdlNotification so that when the flag is on, those options will not show

Implementation Notes

• Used mmdlNotification flag rather than making my own flag
• Added logic in Triage.js so that if the flag is on, any card with the description containing MMDL will not show
• added logic to routes (matching the subdoc launch darkly code) so if the mmdlNotification flag is on, the landing pages redirecting the MMDL will not be added (aka those routes will redirect to 'Not Found')

Note: it seems my editor made some minor formating changes, I am sorry about that

Test Plan

1. Leave mmdlNotification flag off
2. Log into app and verify that on route: choices/spa/medicaid and choices/spa/chip still have the cards relating to MMDL
3. turn the flag on
4. Verify that cards referring to MMDL are no longer visible on above routes, and that those pages can no longer be accessed manually.

[github-actions]

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