Allow opening /diff while copilot is working #1521
Description
Describe the feature or problem you'd like to solve
It'd be very useful to be able to view /diff while copilot is working on something without interrupting it
Proposed solution
It'd be very useful to be able to view /diff while copilot is working on something without interrupting it. This would allow live reviewing changes without interrupting the main agent workflow. It would be especially useful for long running tasks spanning minutes or more to quickly assess changes without needing to switch over to a different terminal.
Example prompts or workflows
No response
Additional context
No response