D7798: [Folder View] Fix supported drag actions

[Eike Hein]

hein accepted this revision.

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D7798

To: broulik, #plasma, hein, davidedmundson
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, 
abetts, sebas, apol, mart