recorder: unbind add/remove streams from the toggle

src/call.cpp

src/call.h

src/media/audio/audio_input.cpp

src/media/audio/audio_input.h

src/media/audio/audio_receive_thread.cpp

src/media/audio/audio_receive_thread.h

src/media/audio/audio_rtp_session.cpp

src/media/audio/audio_rtp_session.h

src/media/audio/pulseaudio/pulselayer.cpp

src/media/media_attribute.cpp

src/media/media_attribute.h

src/media/media_decoder.cpp

src/media/media_decoder.h

src/media/media_encoder.cpp

src/media/media_recorder.cpp

src/media/media_recorder.h

src/media/peerrecorder.h

src/media/recordable.cpp

src/media/rtp_session.h

src/media/video/video_input.cpp