Type letter to focus menu item for ASelect #997

[BogdanV3]

Please check if the PR fulfills these requirements

• [ ] The commit message follows semantic commit message guidelines
• [ ] The changes are documented in component docs and changelog
• [ ] The ESLint plugin has been updated if a new component is added
• [ ] Test have been added or modified, if appropriate
• [ ] Has been verified locally

What kind of change does this PR introduce? feature

Closes #997

What is the current behavior?

What is the new behavior (if this is a feature change)? Focus on the first item that begins with user typed characters.

Does this PR introduce a breaking change? No

Other information:

[vercel[bot]]

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Name	Status	Preview	Updated
atomic-react	✅ Ready (Inspect)	Visit Preview	May 23, 2022 at 1:44PM (UTC)

[codecov[bot]]

Codecov Report

Merging #1219 (d2db7c4) into master (a50b971) will decrease coverage by 0.25%. The diff coverage is 25.00%.

@@            Coverage Diff             @@
##           master    #1219      +/-   ##
==========================================
- Coverage   91.20%   90.95%   -0.26%     
==========================================
  Files         104      104              
  Lines        3162     3174      +12     
  Branches     1054     1056       +2     
==========================================
+ Hits         2884     2887       +3     
- Misses        240      248       +8     
- Partials       38       39       +1     

Impacted Files	Coverage Δ
framework/components/AMenu/AMenu.js	85.29% <25.00%> (-12.93%)	:arrow_down:

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[BogdanV3]

@brennarvo, if you got some time, please have a look. After the code review, I can move further to fix the tests. Also: https://github.com/cisco-sbg-ui/atomic-react/pull/1216

[BogdanV3]

@brennarvo reminder :)