cypress test optimizations

Before you submit a pull request, please make sure:

[ ] The pull request should include a description of the problem you're trying to solve
[ ] The pull request should include overview of the suggested solution
[ ] If the pull requests changes current behavior, reasons why your solution is better.
[ ] The proposed code should be fully functional
[ ] The proposed code should contain tests relevant to prove is functionality
[ ] The proposed tests should ensure significative code coverage
[ ] All new and existing tests should pass

GLOBALEAKS / globaleaks-whistleblowing-software