[TRACKING] Automated smoke testing

[angela-tran]

As a part of our release process, we perform smoke tests after deploying to the production app instance (see the step in our release issue template: Smoke Test the app in prod).

It would be nice to automate this, and Playwright seems like a good tool for doing so.

Acceptance Criteria

• Figure out a way for developers to run Playwright easily
• Write a Playwright test for each test listed in the Benefits Smoke Testing Google Doc
  • If it is difficult or not possible to automate certain tests, document the reason
• Set up GitHub workflow to run Playwright against dev, test, or prod when manually triggered
• (Optional) Figure out a way for developers to use Playwright tools (trace viewer, inspector, headed mode)

Related, but separate

• Set up GitHub workflow to run Playwright against local instance for pull requests
• Update Benefits Smoke Testing Google Doc to include SacRT flows
• Move Benefits Smoke Testing Google Doc contents into a page on our documentation site
• Remove Cypress

Additional context