[Audiosharing] Update STREAM_MUSIC volume when primary group change

We need to always align the STREAM_MUSIC volume and primary headset volume during audio sharing to make sure the music stream volume can be kept once the audio sharing is stopped

Test: atest
Bug: 336716411
Flag: com.android.settingslib.flags.volume_dialog_audio_sharing_fix
Change-Id: Ic4492307aa61e2c88896673d3d29b9f77f699fec