Add key binding for `editor: open selections in multibuffer` (#23648)
Joseph T. Lyons
created
Follow-up to: https://github.com/zed-industries/zed/pull/23644
- Existing: `alt-enter` to open files from multi-buffer selections
- New: `alt-enter` to open multi-buffer from file selections
I updated the original PR changelog line.
Release Notes:
- N/A