fix: Makes autosuggest input use aria-expanded every time the dropdown is shown

[pan-kot]

Description

Currently, the aria-expanded on autosuggest input is set to false when the dropdown has only entered text value option. That is inconsistent to states when the dropdown only shows a status like "finished" or "loading". The PR makes it so the ARIA expanded is added whenever the dropdown is visible.

Additionally, the PR refactors autosuggest dropdown states tests mainly to include the filtering results text feature that does not have a single in the main.

Rel: [A2f2AlIalxx9]

How has this been tested?

• Updated unit tests to secure the aria-expanded is set to true for all dropdown states.

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 96.34%. Comparing base (a5be1f7) to head (4284824).
Report is 42 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3099   +/-   ##
=======================================
  Coverage   96.34%   96.34%           
=======================================
  Files         778      778           
  Lines       21899    21902    +3     
  Branches     7514     7504   -10     
=======================================
+ Hits        21099    21102    +3     
  Misses        748      748           
  Partials       52       52           

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