While playing around with the "Screenshot" action from the action
drawer in plasma-mobile, I discovered that if you try the open the
image (by pressing the image icon from the screen shot popup) it would
automatically call okular and _not_ okularkirigami.

This is caused okularApplication_*.desktop files all pointing to
okular instead of okularkirigami.

Extending the dirty hack to these files fixes the issue.

Signed-off-by: Marc Ferland <marc.ferland@sonatest.com>