Zabbix

..F....... [ZBX-19688] fixed minor visual issues with the dashboards

Merge in ZBX/zabbix from feature/ZBX-19688-5.4 to release/5.4

* commit 'd1fa5921973259949d5d4d1b77acb5ac7bd14e83':
  ..F....... [ZBX-19688] fixed "Add a new widget" placeholder disappearing occasionally
  ..F....... [ZBX-19688] improved extra bottom row calculation in dashboard edit mode
  .......... [ZBX-19688] added ChangeLog entry
  ..F....... [ZBX-19688] fixed impossibility to place "Add a new widget" placeholder below the occupied bottom row of the dashboard
  ..F....... [ZBX-19688] fixed mispositioning of the "Add a new widget" placeholder when reordering dashboard pages
  ..F....... [ZBX-19688] fixed wrong translation in dashbaords
  ..F....... [ZBX-19688] fixed reappearing "Add a new widget" placeholder after cancelling adding a widget
  ..F....... [ZBX-19688] fixed non-clickable "Add a new widget" placeholder