WiFi: Add "Forget all networks"

Included Dutch translation

Change-Id: I0e04dde55fcb06b5c50baef91dd09852d2537007
Pie control: available for devices without navbar, added option to enable pie, if not expanded desktop

Change-Id: I8beb4df6eb89d2cb67e1b53f184ffb64e28a0aba
Make Pie visible on devices with disabled navbar

Change-Id: I3229f0b705d3ae630ea641a4cdf1df0e2a818bac
Translate Mackay settings and move down

Change-Id: Iefaaffda22909c002c1be8e3e52ee9ec345d21c1