Zabbix

..F....... [ZBXNEXT-9215] implemented item connectivity to another widgets in Graph and Pie chart widgets

* commit 'a5f801cc313ff4c4fc6352fcc280ed7170ab7f35':
  .......... [ZBXNEXT-9215] fixed add button in Selenium test
  ..F....... [ZBXNEXT-9215] fixed uncaught type error
  ..F....... [ZBXNEXT-9215] fixed SVG graph and Pie chart widgets can be added without hosts and items
  ..F....... [ZBXNEXT-9215] fixed dataset validation
  ..F....... [ZBXNEXT-9215] fixed graph widget configuration with empty datasets
  ..F....... [ZBXNEXT-9215] fixed dataset data validation
  ..F....... [ZBXNEXT-9215] added communication to piechart widget
  ..F....... [ZBXNEXT-9215] fixed dataset configuration for graph widget
  ..F....... [ZBXNEXT-9215] implemented item connectivity to another widgets in Graph and Pie chart widgets
  ..F....... [ZBXNEXT-9215] fixed coding style

(cherry picked from commit 536baf4755303eae1a7489526f8e56b7000e41b2)