Add app_loupe test
Loupe is the new core app for image viewing.
Sophie (she/her) Sam Thursfield: If you want to add Loupe to openQA: Just opening an image involves a bunch of machinery because of decoder sandboxing. So checking if it loads an image, could be a good test.
This ties in to #8 (adding content for testing), maybe we could have one image of each different file type, etc. This work is still in early stages.
Perhaps as a shortcut there's an example image in GNOME OS that we could open. A desktop background for example.