Missing icon in AppStream metadata

[AsciiWolf]

The Break Timer icon seems to be missing on Flathub.org.

[dylanmccall]

Thank you! This was supposedly fixed with flathub-infra/backend#17, but it appears there is another backend issue lingering somewhere. I released version 2.0.3 just now with a workaround that changes the metainfo file's launchable attribute to the daemon application, which has a desktop file name matching the Flatpak app id. That should result in the icon appearing. Not ideal since it might confuse some applications (I expected it would make the "launch" button in GNOME Software not do anything, for instance, although actually it's fine!). It feels like a reasonable compromise until either the backend handles our weird metainfo file better or our metainfo file gets less weird (https://gitlab.gnome.org/GNOME/gnome-break-timer/-/issues/3). I expect at least one of those two things will happen over the next week :)