Add some learning prompts and "send to edit session" for inline chat (#267519)

* wip

* update learnings

* clean 1

* clean 2

* commit update-instructions.prompt.md

* swap back to normal model after being in delegate

* adding generation

* wip

* wip

* update

---------

Co-authored-by: Henning Dieterichs <hdieterichs@microsoft.com>
Co-authored-by: Anthony Kim <anthonykim@microsoft.com>
Co-authored-by: SteVen Batten <sbatten@microsoft.com>