* Modify 'InstallCheByOperatorHub' to use it for update application
* Create e2e 'SubscribeCheByOperatorHub' test
* Create 'mocha-che-subscribe-operator' file
* Add new test suite to 'package.json' file
* Update 'mocha-che-operatorhub' file
* Remove unused variable from 'TestConstants'
* Change timeout in 'SubscribeCheByOperatorHub' e2e test
* Update locators and methods according to changed UI
* Do refactor and update methods in page objects
* Implement log into installed application with regular user of OCP
* Update and modify parameters in the 'TetsConstants'