Connected devices page did not show correct summary when member device connect

Root Cause: CsipDeviceManager only refreshes UI when switching member device content.

Solution:
* CsipDeviceManager needs to call refresh() on main device when it's new
  member device added.
* UI widget Settings/BluetoothDevice also need to monitor it's member device status to refresh UI.

Bug: 344947362
Test: atest CsipDeviceManagerTest
Flag: EXEMPT bugfix
Change-Id: Iecfe7c4dd16f61d52a14c3afae47275897817324