chore: Update color palette

[at-susie]

Description

Update the Cloudscape color palette holistically.

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

---

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.95%. Comparing base (120bf8b) to head (efb8425).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2653      +/-   ##
==========================================
- Coverage   95.96%   95.95%   -0.01%     
==========================================
  Files         748      748              
  Lines       20788    20788              
  Branches     6698     6698              
==========================================
- Hits        19949    19948       -1     
- Misses        831      832       +1     
  Partials        8        8              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.