Zabbix

..F....... [ZBX-22757] fixed action condition labels when custom expression is set

Merge in ZBX/zabbix from feature/ZBX-22757-6.4 to release/6.4

* commit 'e1a9b8e4d1c707fa7a5d9828b13b01dc90052cde':
  ..F....... [ZBX-22757] fixed condition sorting by formula only when formula is present
  ..F....... [ZBX-22757] minor coding style fix
  ..F....... [ZBX-22757] fixed code style; fixed condition sorting with double letter formulaids; added unit tests
  ..F....... [ZBX-22757] fixed code style; moved condition sorting function to condition helper class; added function and parameter description
  ..F....... [ZBX-22757] added condition sorting by formula before creating a new action
  ..F....... [ZBX-22757] fixed action condition labels when custom expression is set

(cherry picked from commit 70b0815676fb8c51087ff2db6182eca78c9a7ba2)