Use hamburger icon rather than gear icon for menu
Submitted by Yousuf Philips @philipzae
Assigned to Sean Davis @bluesabre
Description
Similar to apps like nautilus, firefox, and gnome control center, the button that opens a menu should have a hamburger icon, which will also make less confusion as the icon for the 'Preferences' in the menu also uses the same gear icon.
Version: 1.4.13