Introducing multibuffers (#14668)

Co-Authored-By: Marshall <marshall@zed.dev>

Release Notes:

- Added a hint the first few times you open a multibuffer to explain
what is going on.

Co-authored-by: Marshall <marshall@zed.dev>
4852e170ffConrad Irwin committed on 7/17/2024, 5:54:52 PM· committed by GitHubparent53bcc36
5 files changedLine totals unavailable