Run Cypress EE tests in isolation (#14339)

* Run all tests in isolation for `ad-hoc.cy.spec.js` [ci skip]

* Refactor sandboxes [ci skip] (#14340)

* Fix typo

* Use API for question creation

* Divide test for admins and sanboxed users

* Organize tests better and run them all in isolation

* A detailed explanation of all changes is available in the original PR: #14340

* Use template tag variable in an SQL query

Co-authored-by: flamber <1447303+flamber@users.noreply.github.com>

* Refactor whitelabel Cypress tests [ci skip] (#14346)

* Run all tests in isolation for `drill_through.cy.spec.js`

Note: This test is skipped. It should probably be deleted.

* Run all tests in isolation for `snippet-permissions.cy.spec.js`

* Use aliased import path [ci skip]

* Refactor Cypress test related to changing the comapny name

* Refactor Cypress test related to the logo customization

* Update tests related to colors

* Run all tests in isolation

* Reorganize tests and run them in isolation

* Extract company name in a `const`

* Supply only `value` to API logo update

* Refactor auditing Cypress tests [ci skip] (#14362)

* Use API to create dashboards
Note: This change alone cuts down total run time by 10s.

* Clean up helper functions

* Extract the setup logic

* Reuse `USERS` object

* Tidy up the test

* Do not export helper functions [ci skip]

* Simplify variables [ci skip]

* Mark skipped test with the issue number [ci skip]

Co-authored-by: flamber <1447303+flamber@users.noreply.github.com>