feat: keydownBehavior for textarea

[mkurcius]

What:
added keydownBehavior for textarea

Why:
{arrowleft} and {arrowright} are not working for textarea elements

How:
added textarea to isElementType params in keydownBehavior

Checklist:

• Documentation
• Tests
• Ready to be merged

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[codecov]

Codecov Report

Merging #686 (41b875a) into master (ffba2df) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #686   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        50           
  Lines          934       934           
  Branches       368       368           
=========================================
  Hits           934       934           

Impacted Files	Coverage Δ
src/keyboard/plugins/arrow.ts	100.00% <100.00%> (ø)

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[ph-fritsche]

@all-contributors add @mkurcius code

[allcontributors]

@ph-fritsche

I've put up a pull request to add @mkurcius! 🎉

[github-actions]

🎉 This PR is included in version 13.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[ph-fritsche]

Thanks a lot for verifying that reusing that implementation on textarea doesn't hurt 😃