documentation

Pull request #2231: Feature/ZBX-23960 7.0 D c4

Merge in WEB/documentation from feature/ZBX-23960-7.0-D-c4 to release/7.0

* commit '828cddbe8af2b09b338046ae51d350cb80f02105':
  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".