Transcript improvements: Dialog Style, show the speaker, and time Sync

[dabbish]

Speaker partitioning in AWS - Links for reference

https://docs.aws.amazon.com/transcribe/latest/dg/diarization.html https://docs.aws.amazon.com/transcribe/latest/dg/conversation-diarization-med.html https://aws.amazon.com/about-aws/whats-new/2020/08/amazon-transcribe-supports-speaker-labeling-streaming-transcription/ https://aws.amazon.com/blogs/machine-learning/using-speaker-diarization-for-streaming-transcription-with-amazon-transcribe-and-amazon-transcribe-medical/