fix(Card): remove extra transition from shadow variant

[linseyjayne]

Overview

in firefox our path cards have come alive with a heartbeat! ( i think due to an extra transition attribute )
https://github.com/user-attachments/assets/1da679e7-f526-49d1-a283-4dac7bd6e4b4

removes extra transition from shadow variant of card to fix firefox animation

PR Checklist

• Related to designs: n/a
• Related to JIRA ticket: DOT-978
• 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.

1. Go to isInteractive card story[link here soon]
2. Hover over the cards in firefox, make sure they animate as expected
3. Do the same in chrome
4. Do the same in dark mode
5. Check it with VO
6. Finish and do a celebratory dance

PR Links and Envs

Repository	PR Link
Monolith	Monolith PR
Mono	Mono PR

[nx-cloud]

View your CI Pipeline Execution ↗ for commit da48c9e.

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☁️ Nx Cloud last updated this comment at 2025-06-13 17:22:49 UTC

[codecademydev]

📬Published Alpha Packages:

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