Bug 889717 - [Settings] Do not work when you are scrolling and select a menu
(cherry picked from commit 6990d381055cafaa28995c221bb69cf4023c64b9)

Conflicts:
	apps/settings/style/icons.css
Merge pull request #11009 from mozshiao9/v1-train_settings_889717

Bug 889717 - [Settings] Do not work when you are scrolling and select a ...