(WIP)Conversation messages refactor add msg ids

[danielpatrickhug]

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Pull Request for #360

• Still a WIP, still need to update main and potentially update ConversationMessage types to remove optional.

Here the current changes

• in oasst_shared/schemas/protocal.py I modified ConversationMessage adding the variable message_id and frontend_message_id
• in backend/oasst_backend/api/v1 I modified instances of ConversationMessage in tasks.py and utils.py to include the new variable when instantiating ConversationMessage
• Ran pre-commit to format

What still needs to be fixed:

• I'm still trying to understand how to fix what's going on in main.py any advice would be appreciated. @andreaskoepf mentioned using trace_conversation() in prompt_repository.