Enable 'Select Network' settings panel

[benfinix]

Draft PR ready for enabling network selection in the settings menu.

Have re-used the network selection view from the configuration process, and hidden some elements when we're not in recovery

Terminology also updated from 'wifi' to 'select network' as this is not exclusive to wifi networks

[patowens]

Given some time has passed, I've tested this afresh, I find the following:

1. It doesn't have the currently set network shown by default. I reckon it should
2. When submitting, it calls two APIs /network/set-pending, /system/bootstrap

I think the APIs involved should actually be
/network/set-pending
/network/connect

As /system/bootstrap returns a 403 because it cannot be called outside of recovery mode.

[patowens]

The /network/list api does not indicate which interface is currently set. I recommend we update the api to include a isCurrentInterface (or similar) flag.