fix: override invalid / warning styles with style api

[mxschll]

Description

• Extends mixins form-invalid-control and form-warning-control to accept parameters for setting color and background-color
• Input invalid and warning state styles will get overridden by if custom styles are set

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

How has this been tested?

Changes ran through pipeline.

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 96.99%. Comparing base (ec8adf6) to head (963102e).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4055   +/-   ##
=======================================
  Coverage   96.99%   96.99%           
=======================================
  Files         861      861           
  Lines       25220    25220           
  Branches     9107     9107           
=======================================
  Hits        24463    24463           
  Misses        751      751           
  Partials        6        6           

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