Add the shortcut to undo using ctrl + z about pointless

[kkoomen]

Hi,

The current commands are only for MacOS, because I use MacOS myself. In order to support Windows via CTRL rather than the META key there have to be made much more changes. Either way, I'll implement them.

[aldovandus]

Hi @kkoomen, yes it works great now. Thank you.

[kkoomen]

@aldovandus I just implemented this and merged to the master branch. Can you pull locally, then run yarn run tauri dev and check the following:

• Tooltips should display CTRL rather than META
• Executing the shown shortcuts should work, e.g.: ctrl-z

[kkoomen]

@aldovandus Good to hear. Enjoy! Feel free to submit more issues or feature requests.