Merged requested to merge ochosi/xfce4-notifyd:improved-icon-matching into master
Leverage GIO's g_desktop_app_info_search function to fuzzy-find a match for the application if we otherwise couldn't find a match. We naively pick the first match because the matching algorithm is unknown and potentially subject to change according to the GIO docs.
This helps a lot with matching e.g. Flatpak applications.