documentation

Pull request #2232: Feature/ZBX-23960 7.2 D c4

Merge in WEB/documentation from feature/ZBX-23960-7.2-D-c4 to release/7.2

* commit '17f80a5dd80e1970d02420fe0456c8305d9dd089':
  ZBX-23960 renamed "bar" to "section name".
  ZBX-23960 fixed the filter button position.
  ZBX-23960 fixed button name, clarified filter position, renamed "bar" to "section name".