fix(core): drop nanoid for three UUID utils

[CodyJasonBennett]

Why

The introduction of nanoid in 90f9ffa relies on crypto which is not available in some contexts like react-native.

What

I've removed the nanoid dependency and used three's UUID helpers for now, although I've written a polyfill for other projects if that's preferred:

const uuid = () =>
  '00-0-4-1-000'.replace(/\d/g, (s) =>
    (((Math.random() + Number(s)) * 0x10000) >> Number(s)).toString(16).padStart(4, '0').toUpperCase(),
  )

Checklist

• Documentation updated
• Storybook entry added
• Ready to be merged

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