docs(styleguide): auto-collapse Figma embed for known non-Codecademy-admin user

[JoshuaKGoldberg]

Overview

Auto-collapses the Figma embed in Storybook docs pages if the Codecademy user is loaded and not an admin.

Context: I'd like to show off Gamut to people in my talks about design systems. But the giant Figma embeds are getting in the way for non-employees like me. I chatted with @dreamwasp who chatted with the team about the strategy in this PR: auto-collapsing them by default if we know the user isn't a Codecademy admin.

I'm getting Uncaught Error: Cannot find module '@codecademy/variance' locally (and yes, I did yarn build from the root). So I haven't tried it out locally.

PR Checklist

I can't do any of these things :c

• [ ] Related to designs:
• [ ] Related to JIRA ticket: [ABC-123]
• [ ] I have run this code to verify it works
• [ ] This PR includes unit tests for the code change
• [ ] This PR includes testing instructions tests for the code change
• [ ] The alpha package of this PR is passing end-to-end tests in all relevant Codecademy repositories

Testing Instructions

Don't make me tap the sign.

PR Links and Envs

i don't know what all this is :c sorry

Repository	PR Link	PR Env
Monolith	Monolith PR	Monolith Env
Portal	Portal Link	Portal Env
Another Repo	Another Link	Another Env