dev: playwright mvp

[mastercactapus]

Description:
This PR adds playwright as a test framework for integration tests.

• Engine cycle time is now configurable via --engine-cycle-time flag
• Updated header tags and menuitem roles in UI for parity between mobile & wide
• First test adds and validates an email contact method
• make start-integration can be used to start background processes to speed up test runs during dev
• admin and user sessions are available for tests as a starting point

Which issue(s) this PR fixes:
Closes #2589

Out of Scope:

• Not migrating any existing Cypress tests
• Failed-test traces are generated in test-results/ but not made available in CI yet

Additional Info:

• You can run the playwright tests with yarn playwright test or make playwright-run
• make test-integration has been updated to include both playwright and cypress tests

Cold start run time:

$ make playwright-run
  ✓  1 [chromium-wide] › email-cm.spec.ts:10:1 › EMAIL contact method (3s)
  ✓  2 [chromium-mobile] › email-cm.spec.ts:10:1 › EMAIL contact method (3s)

  2 passed (12s)
Done in 12.61s.

With make start-integration running:

$ make playwright-run
  ✓  1 [chromium-mobile] › email-cm.spec.ts:10:1 › EMAIL contact method (4s)
  ✓  2 [chromium-wide] › email-cm.spec.ts:10:1 › EMAIL contact method (3s)


  2 passed (4s)
Done in 4.69s.