Extract `ContextHistory` to `assistant_context_editor` (#23437)

This PR extracts the `ContextHistory` to the `assistant_context_editor`
crate.

Release Notes:

- N/A

Marshall Bowers committed 1y ago

be407e27f962e50843f5b0ce68431e37acd0990a

Parent: e59c910

Committed by GitHub <noreply@github.com> on 1/22/2025, 1:32:24 AM