For a more complete translation experience for the users i suggest making this string translatable:
Geany is a small and lightweight Integrated Development Environment. It was developed to provide a small and fast IDE. Another goal was to be as independent as possible from a KDE or GNOME - Geany only requires the GTK3 runtime libraries.
Can be seen in gnome-software.
I think other software use a appdata.xml file with those strings. Might have something to do with appstream but i dont know the details.