Zabbix

.......... [DEV-4897] fixed Selenium tests and introduced datatable element and datatable behavior to Selenium test framework

* commit 'c120763b3b06832e3a7de9d6990e1aad7b2894be': (109 commits)
  .......... [DEV-4897] added updating viewport before screenshot assertion to stabilise screenshot tests and stabilised clicking on template name by scrolling it into view
  .......... [DEV-4897] removed sleep and added workaround for screenshot taking
  .......... [DEV-4897] added sleep for debug purposes
  .......... [DEV-4897] removed sleep as it did not help
  .......... [DEV-4897] added sleep to another place to see if it helps
  .......... [DEV-4897] added sleep to try to identify the problem
  .......... [DEV-4897] made a couple of more tests more stable
  .......... [DEV-4897] removed workaround that did not help and increased sleep for testing purposes
  .......... [DEV-4897] changed button title
  .......... [DEV-4897] removed attempt to fix image resizing and added collapsing menu to check theory
  .......... [DEV-4897] attempted to fix wrong image size in graphs
  .......... [DEV-4897] removed code that did not help
  .......... [DEV-4897] attempted to fix Graph axis Selenium test
  .......... [DEV-4897] made module tests not dependent on previous kiosk mode related test failure and added wait method call
  .......... [DEV-4897] added additional waits to stabilise tests
  .......... [DEV-4897] fixed type-o
  .......... [DEV-4897] moved wait for dashboard to be ready to a more correct place in test
  .......... [DEV-4897] fixed type-os
  .......... [DEV-4897] fixed minor issues in comments
  .......... [DEV-4897] added another missing wait that is required at slow page performance
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