Address' Context Menu opens with the first option highlighted

[AdrianBLK]

Steps to reproduce:

• go to Account screen (click from Dashboard on any account)
• click on the address' context menu icon
• the menu opens
• the first item (Reveal Private Key) is highlighted = as if it was clicked

Video here: https://www.screencast.com/t/Ni5Ml6p3eQ

Bug related to #148
Please also check #84 => if the menu can be moved lower, then maybe this highlight issue will be fixed also...