Zabbix

..F....... [DEV-3088] updated class naming for overlay dialogues

* commit '82505f38f3d96d3719dfe2225060c7a8a231672d':
  ..F....... [DEV-3088] removed unused constants and CSS declarations; updated naming for overlay elements
  ..F....... [DEV-3088] updated aria-labelledby attribute naming for modal forms
  ..F....... [DEV-3088] updated class naming for overlay dialogues