feat(sketch): update plugin to emit hover color palette

[tay1orjones]

Closes #9253

Updates the commands for sync shared layer styles, sync color variables, and generate color page to emit the hover color palette from @carbon/colors

Changelog

Changed

• sketch: core and hover palettes are now in two separate folders for both variables and shared layer styles
  • eg. color / core / red / red 60 and color / hover / red hover / red hover 60
• sketch: generate color page includes hover colors in proper order

Testing / Reviewing

Pull down the branch, spin up the sketch plugin locally, try out the three color commands from the plugins menu.

The generated color page should include hover colors

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✔️ Deploy Preview for carbon-components-react ready!
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[joshblack]

Looking good! Any feedback that you're looking for specifically while this is a draft PR?

[tay1orjones]

Looking good!

@joshblack I think that's exactly the type of preliminary feedback @andreancardona and I were looking for 😄 just something to see if we were on the right track.

Now we've completed the rest of the line items from the initial issue and I've marked this ready for review 👍

[aagonzales]

I can't test it locally but from the screenshot provided it looks correctly organized!