Connection Detail v2 - Summary

Been working on the mobile app again these past few weeks to bring it up to par with the network visualisation work that @Paul Hatch has done for the web portal.

The connection detail screen is given a minor facelift to accomodate the upgraded utilisation donut chart (it now shows Rx and Tx), and the full-page historical utilisation chart (which can be accessed from the "Utilisation" tab.