[POC] Fix preprint state machine

[Johnetordoff]

Purpose

Erase tech debt from old state machine implementation.

Changes

• Standerize triggers and states using ModerationEnum
• Separate overlapping transitions to make them more declaritive and indepenent of each other
• Intestate state machine on model so validation works (fix MachinableMixin)
• Write validation for before state transitions
• Write after behavior to conform to tests.
• ReviewActionSerializer should improve in code quality

QA Notes

Please make verification statements inspired by your code and what your code touches.

• Verify
• Verify

What are the areas of risk?

Any concerns/considerations/questions that development raised?

Documentation

Side Effects

Ticket