Zabbix

.........T [ZBX-18673] fixed JS in Slack media and updated documentation

Merge in ZBX/zabbix from feature/ZBX-18673-5.2 to release/5.2

* commit '312a93e4d446025d4bcee18feaea9b16878f845a':
  .........T [ZBX-18673] fixed readme
  .........T [ZBX-18673] fixed readme and HTTPProxy for getPermalink function
  .........T [ZBX-18673] fixed error handling
  .........T [ZBX-18673] fixed Status() in JS
  .........T [ZBX-18673] removed images
  .........T [ZBX-18673] fixed JS in Slack media and updated documentation