feat: Focus stays in the input on opening select or multiselect with filter input

[YueyingLu]

Description

When open the select with filtering, focus should stays in the input, until up/down arrow key is pressed. So that screen readers can recognise and announce combobox.
For other select without filtering, focus should go to selected item when it opens, as it is.

Related links, issue AWSUI-18955

How has this been tested?

Added unit test

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

Base: 92.38% // Head: 92.41% // Increases project coverage by +0.03% 🎉

Coverage data is based on head (1e39d8d) compared to base (d10dba7).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #543      +/-   ##
==========================================
+ Coverage   92.38%   92.41%   +0.03%     
==========================================
  Files         569      569              
  Lines       16218    16213       -5     
  Branches     4433     4433              
==========================================
+ Hits        14983    14984       +1     
+ Misses       1151     1145       -6     
  Partials       84       84              

Impacted Files	Coverage Δ
src/select/utils/use-select.ts	94.85% <100.00%> (ø)
src/code-editor/index.tsx	87.30% <0.00%> (-0.20%)	⬇️
src/internal/components/dropdown/index.tsx	92.30% <0.00%> (-0.09%)	⬇️
src/property-filter/token.tsx	100.00% <0.00%> (ø)
src/internal/components/dropdown-status/index.tsx	100.00% <0.00%> (ø)
src/internal/components/filtering-token/index.tsx	100.00% <0.00%> (ø)
src/date-range-picker/index.tsx	99.03% <0.00%> (+0.96%)	⬆️
src/button-dropdown/internal.tsx	100.00% <0.00%> (+1.38%)	⬆️
...rnal/components/options-list/utils/use-keyboard.ts	100.00% <0.00%> (+7.14%)	⬆️

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