status/network: Update appearance of connection items
When not in radio-mode - that is, in the single-connection
case - the item currently uses a plain 'Connect' label.
That is OK while the item is inside a submenu that describes
the device, but we will soon stop using a submenu when a single
item can describe the device as a whole.
Prepare for that by adding an icon that is shown when in non-radio
mode, and include the device name in the label in that case.