Zabbix

..F....... [ZBX-22867] fixed import popup showing circle animation even if PHP code failed

Merge in ZBX/zabbix from feature/ZBX-22867-6.0 to release/6.0

* commit 'b2d0ea532e15dc3197a6f875427a65373e90c020':
  .......... [ZBX-22867] corrected mistakes in changelog
  ..F....... [ZBX-22867] reverted changes
  ..F....... [ZBX-22867] fixed code style
  ..F....... [ZBX-22867] changed controller error message response
  ..F....... [ZBX-22867] fixed minor bug
  .......... [ZBX-22867] changed changelog message
  ..F....... [ZBX-22867] fixed import circle shows animation even if PHP code failed