Describe the feature or problem you'd like to solve
Currently both /new and /clear clear the current conversation's history, effectively starting a new conversation. Semantically, /clear is a good name for this action, but /new could be better to start a new conversation while leaving the current one intact. To achieve this, users need to restart copilot or start in a different terminal, which takes ~5s for me personally, and then they need to wait for MCPs to load, etc..
Proposed solution
Make command /new start a new session, save the current session's history, without having to run copilot again.
Example prompts or workflows
/clear Clear the conversation history
/new Start a new session
Additional context
No response