GMenu `icon` attributed used even when menu icons are off in GtkSettings

• Arch linux
• evolution 3.55.1
• GNOME 47+.

After upgraded to 3.55.1 there appear icons in context menus and other menus. This is inconsistent with GNOME general appearance without icons in context menus.

Bisected to evolution@d773473d.

3.55	3.54