Edit automatic transcription

[rafael844]

It would be nice if we could add notes and change words in transcripted audios, something like in the picture below.

[lfcnassif]

Good idea. This depends on #24

[lfcnassif]

This has to solve a couple of challenges:

• the chat hash should be recomputed, otherwise it wouldn't match
• the chat should also be indexed again, otherwise searches wouldn't find the edited terms
• maybe other modules should be executed again after the edits: e.g.: Regex and NER searching...

[lfcnassif]

Another one:

• transcription should also be update on the original audio items referenced by chats, not only on the chat preview. Comments above also apply to original audio files.