These are more closely like default Emacs bindings.
I hope such small and minor changes didn't warrant a discussion in
advance.
Release Notes:
- Added Emacs bindings for creating a new window, closing a window, and
quitting zed entirely.
Improve behavior of ctrl-a/ctrl-e home/end in emacs keybind.
Follow up to #21921 to add those to Linux emacs keymap too.
Release Notes:
- emacs: Improved `ctrl-a` / `ctrl-e` / `home` / `end` behavior
- emacs: Added for `ctrl-s` / `ctrl-r` / `ctrl-g` for navigating buffer
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