Unable to assign Cmd+Z for undo

[blakegearin]

Captchas

• I have read the instructions.
• I have searched existing issues and avoided creating duplicates.
• I am not filing an enhancement request.

What happened?

Cmd+Z is typically a "undo" shortcut, but is not able to be used that way in Zen currently. Instead, it displays "Conflict with another shortcut" even though no other shortcuts listed use Cmd+Z

Reproducible?

• I have checked that this issue cannot be reproduced on Mozilla Firefox.

Version

1.7.2b

What platform are you seeing the problem on?

macOS - aarch64

Relevant log output if applicable