Add X-KDE-ParentApp entries in metadata.desktop

Authored by bshah on Jun 22 2019, 11:13 AM.

Description

Add X-KDE-ParentApp entries in metadata.desktop

Summary:
If this entry is not added, kpackagetool5 tries to load the specific
packagestructure plugin, fails to load it and then writes the metainfo
as it is "application" instead of add-on

Reviewers: apol, ngraham

Reviewed By: ngraham

Subscribers: plasma-devel

Tags: Plasma

Differential Revision: https://phabricator.kde.org/D21991