Enhancement | Download output

[aadeshkulkarni]

Expectation:

Once the output is generated, user should be able to download the transcriptions, subtitles & chapters as files.

Provide a download button within preview section.
If preview = "Transcriptions" then download click should download a [project-title]-transcript.txt file
if preview = "chapters" then download click should download a [project-title]-chapters.json file
If preview = "subtitles" then download click should download a [project-title]-subtitles.vtt file