refactor: rewrite defaultFilterItems in typescript and add tests

[adamalston]

trafficstars

No issue.

Rewrote defaultFilterItems in TypeScript and added tests.

Changelog

New

• Added defaultFilterItems tests.

Changed

• Rewrote defaultFilterItems in TypeScript.
• Pulled the input normalization out of the loop for performance.

Testing / Reviewing

I left a TODO with a question.

yarn test packages/react

PR Checklist

As the author of this PR, before marking ready for review, confirm you:

• [x] Reviewed every line of the diff
• [x] Updated documentation and storybook examples
• [x] Wrote passing tests that cover this change
• [x] Addressed any impact on accessibility (a11y)
• [x] Tested for cross-browser consistency
• [x] Validated that this code is ready for review and status checks should pass

More details can be found in the pull request guide

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.68%. Comparing base (8536bb5) to head (ba89a13). Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #19665      +/-   ##
==========================================
+ Coverage   84.67%   84.68%   +0.01%     
==========================================
  Files         373      372       -1     
  Lines       14723    14718       -5     
  Branches     4850     4855       +5     
==========================================
- Hits        12466    12464       -2     
+ Misses       2107     2103       -4     
- Partials      150      151       +1     

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[adamalston]

No one answered the question in the TODO so I'll just delete it.

[carbon-automation[bot]]

Hey there! v11.85.0 was just released that references this issue/PR.