test(e2e): implement accessibility regression tests [WPB-19934]

[xdubx]

WPB-19934 [Web/QA] Write the "accessibility" regression tests to playwright

Checklist

• mentions the JIRA issue in the PR name (Ex. [WPB-XXXX])
• PR has been self reviewed by the author;
• Hard-to-understand areas of the code have been commented;
• If it is a core feature, unit tests have been added;

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.74%. Comparing base (a5e559c) to head (123953a).
⚠️ Report is 35 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #19525      +/-   ##
==========================================
+ Coverage   42.69%   42.74%   +0.05%     
==========================================
  Files        1343     1343              
  Lines       32578    32565      -13     
  Branches     7200     7198       -2     
==========================================
+ Hits        13909    13920      +11     
+ Misses      17001    16972      -29     
- Partials     1668     1673       +5     

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud