fix message extraction and include digikamui5.rc file again

Authored by lueck on Dec 12 2018, 4:57 AM.

Description

fix message extraction and include digikamui5.rc file again

running l10n-kf5/scripts/extract-messages.sh locally and messages
from core/app/main/digikamui5.rc are extracted to the template catalog

BUG:402023

Details