* Lock voice message recording
* Use the VoiceMessageCache to store the recording file
* Rework on some composer toolbar buttons
* Update accessibility labels for voice message recording button
* PreviewTests
* Use Combine to report AudioRecorder state changes
* AudioRecorder is now using AVAudioEngine instead of AVAudioRecorder
* Stop recording when audio configuration changes
* AudioRecorder error handling
* UnitTests
* Use Accelerate to calculate RMS