chore(tests): Migrate login acceptance tests from behat to Cypress

[susnux]

Summary

Migrate login acceptance tests.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[skjnldsv]

Cypress failure unrelated `settings/users_disable.cy.ts

Can enable the user:
AssertionError: Timed out retrying after 4000ms: Expected to find element: `tbody.user-list__body tr[data-test="jdoe"]`, but never found it.
  at Context.eval (webpack://nextcloud/./cypress/e2e/settings/users_disable.cy.ts:64:11)

[susnux]

If I am right @nickvergessen needs to sign the drone pipeline?