Remove subtitles from settings dialogs
The subtitles don't really add much value to the dialogs and potentially vertical space could be saved (https://developer.gnome.org/gtk3/stable/GtkHeaderBar.html#GtkHeaderBar--has-subtitle)
The subtitles don't really add much value to the dialogs and potentially vertical space could be saved (https://developer.gnome.org/gtk3/stable/GtkHeaderBar.html#GtkHeaderBar--has-subtitle)