Add support for validating desktop files during `make check`
Submitted by Philip Withnall
Assigned to Hans Petter Jansson @hpj
Description
https://bugzilla.gnome.org/show_bug.cgi?id=708252:
Something like this can be useful to catch breakages caused by translations. Here is an example: https://git.gnome.org/browse/gnome-photos/commit/?id=c3105da2b1903c856206ced9065ee080c61160a2