Replace raw color tokens with stateful alternatives

[aduth]

🛠 Summary of changes

Replaces instances of "green" and "red" design system color tokens with equivalent "success" and "error" tokens.

This is an incremental step toward upgrading to the latest version of the design system, which removes raw color tokens. As noted in the CHANGELOG, these colors are also incorrect.

📜 Testing Plan

1. Visit affected pages to verify that the icon list icons appear in the expected green and red colors:
   1. https://federalist-17bd62cc-77b7-4687-9c62-39b462ce6fd5.sites.pages.cloud.gov/preview/gsa-tts/identity-site/aduth-stateful-colors/help/verify-your-identity/accepted-identification-documents/
   2. https://federalist-17bd62cc-77b7-4687-9c62-39b462ce6fd5.sites.pages.cloud.gov/preview/gsa-tts/identity-site/aduth-stateful-colors/help/verify-your-identity/how-to-add-images-of-your-state-issued-id/

📸 Screenshots

As noted above, the raw color tokens have always been slightly inconsistent with the expected stateful colors, so there is expected to be a slight color difference here.

Before	After

cc for review: @night-jellyfish @charleyf @dawei-nava

[night-jellyfish]

Thanks for tagging us! It's already merged and looks good to me, but I just want to tag @kellular as well.

Edit: tag wasn't initially working, but after posting it did work.