See what feedback shaped a revision, side by side with the original

Two small additions to Critique's revision history.

When you post a revision on your own submission, you can now flag which piece of feedback you were responding to — so anyone reading the thread can see exactly what prompted the change, not just that something changed.

We also added the original submission back into view above the revision list, so it's easy to compare where the work started against where it's ended up. The revision prompt itself now asks what feedback you applied and what changed, instead of just "what changed."