VACMS-15414 Update homepage Cypress tests

[randimays]

Summary

The failing (flaky, Platform-flagged) home page test was previously testing /new-home-page, which hasn't been accessible for a month or so.

I modified the tests to check the functionality of the header and footer on va.gov, as content-build is not accessible to vets-website in the CI, and the header and footer are the only things that resolve. Full surface-level homepage Cypress coverage is in content-build already.

The Stress Test step of the pipeline will not pass due to a mochawesome issue that has been a problem for over a year, and just started resurfacing. Platform is aware of this, but they pointed out that the Stress Test step is not required to pass for merging. Here are all of the Cypress tests passing in that test, though:

• footer.cypress.spec.js
• header-bh-burials-memorials.cypress.spec.js
• header-bh-careers-employment.cypress.spec.js
• header-bh-disability.cypress.spec.js
• header-bh-education-training.cypress.spec.js
• header-bh-health-care.cypress.spec.js
• header-bh-housing-assistance.cypress.spec.js
• header-bh-life-insurance.cypress.spec.js
• header-bh-pension.cypress.spec.js
• header-bh-records.cypress.spec.js
• header.cypress.spec.js

Related issue(s)

• FE: Audit Platform flaky Cypress test report and ticket/fix issues va.gov-cms#15414

Testing done

Cypress tests pass.

[chriskim2311]

LGTM! Great work on this. Tested locally and all are passing