feat: add ConnectionType to device details output

[Harrilee]

Enhance the device details output by including the connection type in both JSON and console formats. Introduce a new method, ConnectionTypeLabel, to retrieve the connection type from the device properties, defaulting to "unknown" if not specified.

Example

% go run . list --details                                   
{"deviceList":[{"Udid":"00008130-000C3DD901E0001C","ProductName":"iPhone OS","ProductType":"iPhone16,2","ProductVersion":"26.3.1","ConnectionType":"USB"},{"Udid":"00008130-000C3DD901E0001C","ProductName":"iPhone OS","ProductType":"iPhone16,2","ProductVersion":"26.3.1","ConnectionType":"Network"}]}