Add icon name to service providers in .desktop file
Summary:
Earlier all entries had same icon ie. "text-html"
See also D18755
Test Plan:
- Open any document
- Choose Selection and select some area of the document
- Context menu appears. Go on search for ...
- New icons
Reviewers: broulik, ngraham, VDG, Okular, Frameworks
Reviewed By: ngraham, VDG
Subscribers: Okular, kde-frameworks-devel
Tags: Frameworks, Okular, VDG
Differential Revision: https://phabricator.kde.org/D18761