The appdata file has no icon reference
It would be good to add an icon reference directly to the appdata file, thus appstream data consumers like gnome-software or KDE Discover can show the app in their GUI. Currently (on Fedora 40) the Gtranslator is skipped in the appstream-data package due to the missing icon.
See https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-icon
When being at it, consider installing the appstream data into the "new" location with the "new" file name, as described for example here: https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#spec-component-location