panel: remove drop down arrows from AppMenu and AggregateMenu
Following #3567 (closed), the design team decided to remove the drop down arrows from both AppMenu and AggregateMenu.
Fixes #3567 (closed).
Edited by Doan Nam Long Vu
Following #3567 (closed), the design team decided to remove the drop down arrows from both AppMenu and AggregateMenu.
Fixes #3567 (closed).