Icon request

[MalteKiefer]

Hi,

some more icons are needed, but only when you want to do it. Sorry I am not a designer:

• [x] dbeaver => Icon=/usr/share/dbeaver-ce/dbeaver.png
• [x] fish => Icon=fish
• [x] Gnome Maps => Icon=org.gnome.Maps
• [x] fedy => Icon=fedy