[Maniphest] [Created] T2198: Fix preview windows covering the main window

[elvisangelaccio (Elvis Angelaccio)]

elvisangelaccio created this task.
elvisangelaccio moved this task to Backlog on the Ark workboard.

TASK DESCRIPTION
  There is no way to show the main window if it's covered by one or more preview windows.
  This should not happen, since preview windows are modeless.

TASK DETAIL
  https://phabricator.kde.org/T2198

WORKBOARD
  https://phabricator.kde.org/project/board/46/

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: elvisangelaccio
Cc: kde-utils-devel, elvisangelaccio, tctara