Zabbix

.......... [DEV-2514] added Selenium tests for Host dashboard navigation

Merge in ZBX/zabbix from feature/DEV-2514-6.5 to master

* commit '4b69e35dfd2d6f982f30e35c8f2196d93d3789fb':
  .......... [DEV-2514] removed duplicate checks
  .......... [DEV-2514] removed extra space in xpaths
  .......... [DEV-2514] fixed PR comments
  .......... [DEV-2514] added needed blank lines
  .......... [DEV-2514] improved testPageHostDashboards_CheckFilters
  .......... [DEV-2514] fixed most PR comments
  .......... [DEV-2514] improved code and added testPageHostDashboards_CheckNavigationDropdown
  .......... [DEV-2514] added more navigation tests
  .......... [DEV-2514] added testPageHostDashboards_CheckNavigation - work in progress
  .......... [DEV-2514] added testPageHostDashboards_CheckNavigation - work in progress
  .......... [DEV-2514] added layout, filter and kiosk mode tests
  .......... [DEV-2514] added initial test placeholder