Update e2e tests in the `e2e` folder to use the new stories structure

[joshblack]

All e2e tests in the project should use the stories array structure for generating e2e tests in the e2e folder. Some files are already updated, like e2e/components/Banner.test.ts, which can be used as a reference for how to update tests.

• Update all tests in the e2e folder that have not been migrated to use this new structure
• Where possible, update the way screenshots are being captured to use the new syntax: await expect(page).toHaveScreenshot(...) and use the existing name for the screenshot in this assertion