test(admin): refactor structure of e2e tests
Created by: HejdaJakub
- Structure of e2e tests has been changed - they are now structured to GUI sections (vos, groups, facilities, resources, members, admin, my-profile) + there is one folder for shared logic (e.g. login).
- There is also initial implementatoin of "test code structure" with describe and context.
- I also changed commented tests to it.skip / context.skip to follow some cypress conventions.
- According to new structure I also extracted one test to the new file vos/perun-admin.cy.js to follow this new stucture.