feat: Arbitrary content for select + multiselect

[SpyZzey]

Description

Adds a renderOption-property to the Select + Multiselect components to allow for arbitrary content as options.

Related links, issue #, if available: [ZNzTAy9SOccH], [JbVHAstbb3bw]

How has this been tested?

• Added unit tests for select + multiselect
• Manual Testing

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 97.14%. Comparing base (1369fb7) to head (efa8686).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4075   +/-   ##
=======================================
  Coverage   97.13%   97.14%           
=======================================
  Files         873      873           
  Lines       25553    25627   +74     
  Branches     9239     9281   +42     
=======================================
+ Hits        24821    24895   +74     
  Misses        726      726           
  Partials        6        6           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.