Use intercept to check for Launch Darkly flag

[bangbay-bluetiger]

Description

• Add a flag attribute to route
• If it doesn't match a live Launch Darkly flag, the route is skipped in Cypress form test

Related ticket(s)

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How to test

1. yarn test should pass

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Pre-review checklist

• I have added thorough tests, if necessary
• I have updated relevant documentation, if necessary
• I have performed a self-review of my code
• I have manually tested this PR in the deployed cloud environment

[codeclimate]

Code Climate has analyzed commit 2a64482 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (90% is the threshold).

This pull request will bring the total coverage in the repository to 96.7% (0.0% change).

View more on Code Climate.

[britt-mo]

Tests passed. Great solution for the flag checks. It's probably worth writing a spike card to look into how we can do the flag check with Launch Darkly SDK.