Retry chapter and status UI change implementation

[KetanKBaboo]

• Need to add retry chapter feature to transcribe failed chapter.
• Need a solution to track the in progress status and show in the UI in case of retry or failed chapter.
• Need a solution when to stop conversion process in case of error happened and stored in tts_msg in UI side.

Transcription current issue in UI:
Currently, From the backend, it's only checking through stt_msg field from Verse table. In case of error, Verse table will hold the stt error message in stt_msg column. In the frontend logic, It's checking if stt_msg !== "Transcription successful", it's assuming chapter to have error. So, in case of book retry, it will set to error status in the frontend side since, it's dependent on stt_msg from the db.
Similarly, in case of chapter retry, it will still set to error status.

Possible fix could be to clear out the stt_msg in the db if it's other than "Transcription successful" before making AI api call.