[Audiosharing] Update media devices section.

1. Filter out the media devices in audio sharing from the section.
2. During the audio sharing, click the media device will lead to
   stopping the sharing.

Flagged with enable_le_audio_sharing

Bug: 305620450
Test: atest AvailableMediaBluetoothDeviceUpdaterTest.java
Change-Id: I0676fd5aa98e593c6a5458845fc1b1631a5a6698