Revert to any part of the conversation, not just from user's inputs

[Alek2077]

The feature

Be able to delete and revert to any part of the conversation, not just from user's input.

What we have now:

Currently, we can only revert to those parts of conversation where the user left a message by deleting it:

We should have a way to reset from anywhere in the conversation, including from any API response.

Why this need?

The AI can do a LOT of things in between my replies. Instead of sometimes deleting half of my conversation, or being forced to comment meaningless things just to be able to revert if the AI messes things up, we'd be able to do it any point offering granularized control over a single conversation.