Refactor useWorkletCommunication and SequencerProcessor for improved type safety and functionality

Commit notes

This commit updates the useWorkletCommunication hook to utilize MutableRefObject for better type safety. Additionally, the SequencerProcessor class is enhanced with a new CHOKE_RELEASE_TIME_SEC property to manage voice choking more effectively. The voice management logic is refined to include gain adjustments during choke release, improving audio playback quality. Various code formatting improvements are also applied for better readability.