Add default bindings for new file and directory (#2877)

Release Notes:

- Added default key bindings for `NewFile` and `NewDirectory` in the
project panel (bound to `cmd-n` and `alt-cmd-n`, respectively).
d3c7f03fc4Joseph T. Lyons committed on 8/22/2023, 3:48:02 PM· committed by GitHubparentsd27cebdebcb395
1 file changedLine totals unavailable