Spanish dictionaries subdomain not working
The Spanish dictionaries subdomain (es.dict.org) is not working:
https://gitlab.gnome.org/GNOME/gnome-dictionary/blob/master/data/spanish.desktop.in#L6
Additionally, when you select the default dict.org server the Spanish dictionaries are available there. I think that if there is no alternative Spanish Dict server (I was unable to find one), we should drop this entry since the default server provides Spanish dictionaries.