Zabbix

..F....... [ZBX-24874] fixed item preprocessing Custom on fail checkbox readonly and disable state toggling

* commit 'e1cc01b05df8bff411a63a1b73e190393924ae78':
  ..F....... [ZBX-24874] fixed coding style
  ..F....... [ZBX-24874] fixed preprocessing step Custom on fail checkbox default state behaviour
  ..F....... [ZBX-24874] fixed item preprocessing Custom on fail checkbox readonly and disable state toggling