feat: improved accessibility for Show/Hide Accordions

[vladislavkeblysh]

Improving accessibility by marking up accordion labels as headings that fit the logical structure of the page. The

containing the show/hide sections will be assigned the role of presentation.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.72%. Comparing base (3cbbb02) to head (da2fcec).
Report is 27 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1635      +/-   ##
==========================================
+ Coverage   84.61%   84.72%   +0.11%     
==========================================
  Files         332      333       +1     
  Lines        5661     5709      +48     
  Branches     1391     1368      -23     
==========================================
+ Hits         4790     4837      +47     
- Misses        852      855       +3     
+ Partials       19       17       -2     

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[itsjeyd]

@vladislavkeblysh Thank you for this contribution! Since it seems to include user-facing changes, you'll likely need to get product approval for it. When you're ready please follow the instructions from the bot to get that process started.