chore: Revert change that caused regression in focus rings

[gethinwebster]

Description

This change caused a visual regression: https://github.com/cloudscape-design/components/pull/4114/files#diff-76784505cdd3d68373b0628c8f3c7aa8d45aa14fb2257bc66c0b487e42f906f6R44

It wasn't actually used in the PR in the end, so can safely revert it.

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?

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.13%. Comparing base (73b6e4a) to head (a7761d1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4124   +/-   ##
=======================================
  Coverage   97.13%   97.13%           
=======================================
  Files         873      873           
  Lines       25553    25553           
  Branches     9239     9240    +1     
=======================================
  Hits        24821    24821           
+ Misses        726      685   -41     
- Partials        6       47   +41     

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