Revised dark mode box shadow for cards

[j10sanders]

Overview

PR Checklist

• 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

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

[codecademydev]

📬Published Alpha Packages:

@codecademy/gamut@55.17.4-alpha.85f0ec.0
@codecademy/gamut-kit@0.6.401-alpha.85f0ec.0
@codecademy/styleguide@66.17.5-alpha.85f0ec.0

[codecademydev]

🚀 Styleguide deploy preview ready!

https://662123c22e61341d6922e85f--gamut-preview.netlify.app

Deploy Logs

[BandanaKM]

@j10sanders i see we are tagged here, but there is no description or testing instructions. mind adding that and linking to what prompted this pr?

[BandanaKM]

otherwise, this looks pretty good! just more curious about the context and instructions to test.