Zabbix

..F....... [ZBXNEXT-9232] implemented sparkline chart component and added it in Item value widget and Top hosts widget

Merge in ZBX/zabbix from feature/ZBXNEXT-9232-7.1 to master

* commit '26d03c22058e6a85a2b0df3c1274972651574eef': (96 commits)
  .......... [ZBXNEXT-9232] added fixes regarding code review
  ..F....... [ZBXNEXT-9232] fixed wrong no data detection when both value and sparkline_value do not have data
  ..F....... [ZBXNEXT-9232] fixed multiselect hidden input disabled property were not changed with enable/disable method
  ..F....... [ZBXNEXT-9232] fixed vertical position of sparkline in top hosts column
  ..F....... [ZBXNEXT-9232] fixed sparkline configuration disabling
  ..F....... [ZBXNEXT-9232] fixed top hosts column undefined value error for display set to sparkline
  ..F....... [ZBXNEXT-9232] fixed incorrect detection of time_period data source
  ..F....... [ZBXNEXT-9232] fixed tophosts widget sparkline history data option should be taken from sparkline configuration
  ..F....... [ZBXNEXT-9232] fixed tophosts widget undefined index when sparkline item is not numeric with aggregate function
  ..F....... [ZBXNEXT-9232] fixed min/max not being visible for top hosts display set to bar or indicators
  ..F....... [ZBXNEXT-9232] fixed undefined index display error; removed duplicate array keys; removed development js highlight code
  .......... [ZBXNEXT-9232] added new test cases for testDashboardItemValueWidget; fixed testDashboardTopHostsWidget_Layout test
  ..F....... [ZBXNEXT-9232] removed unneccessary code in sparkline setvalue
  ..F....... [ZBXNEXT-9232] fixed getFields method missing; fixed time_period not being validated for widget and custom time periods
  ..F....... [ZBXNEXT-9232] fixed code style
  ..F....... [ZBXNEXT-9232] trigger refresh on time_period component to set correct .disabled state of it input fields
  .......... [ZBXNEXT-9232] updated data provider; added new tests cases for testDashboardItemValueWidget
  .......... [ZBXNEXT-9232] fixed CopyWidgetsDashboards dataSource
  ..F....... [ZBXNEXT-9232] added check for is array because of lack of validation of fields on API side
  ..F....... [ZBXNEXT-9232] additional check on new item widget creation
  ...