Better types and tests for useKeyProps

[Saadnajmi]

Platforms Impacted

• iOS
• macOS
• win32 (Office)
• windows
• android

Description of changes

This PR makes the following improvements to useKeyProps:

1. Moves the associated types to platform specific type files. That should set us up better for when we enable Typescript's platform specific type checking
2. Combines the useKeyProps.<platform>.ts files into one. There was starting to be a lot of duplicated logic. Now that the types are separated out, I think the main file can be one combined one.
3. Adds some simple tests that ensure that we can use our hook without causing unnecessary extra renders
4. Removes some uses of a type from our deprecated copy of Pressability in favor of the actual type from React Native Core / macOS / windows.

All in all, this is mostly a quality of life improvement.

Verification

CI should pass

Pull request checklist

This PR has considered (when applicable):

• Automated Tests
• Documentation and examples
• Keyboard Accessibility
• Voiceover
• Internationalization and Right-to-left Layouts