feat: implements mouse control support for MacOS

[Kircheneer]

Describe your changes. Use imperative present tense.

Implemented mouse control support for MacOS.

Checklist

• Add documentation to docs/config.adoc
  • N/A - already in
  • Updated known issues for platforms
• Add example and basic docs to cfg_samples/kanata.kbd
  • N/A - already in
• Update error messages
  • Yes
• Added tests, or did manual testing
  • Yes

[nightscape]

I just tried this, great job!
Mouse movement and mrgt work without issues, but mlft does not click.
@Kircheneer same for you?

[Kircheneer]

I plan to address @nightscape's comments, just haven't had a lot of time to check yet.

[Kircheneer]

I have tried with the following config:

(defsrc
e
)

(defalias
e mlft
)

(deflayer default
@e
)

and this worked flawlessly. Can you share what config you are on maybe?

[nightscape]

@Kircheneer I just tried again with your configuration and I'm still observing the same behaviour:
I can click on certain things, e.g. the Mac OS Menu Bar, but not others, e.g. to change a tab in iTerm.
Do you have iTerm installed? If so, could you try switching tabs using the mlft?