[MWPW-161923] tab nested focus

[DKos95]

This resolves the issue where the buttons were nested in a div and not selectable with keyboard and screenreader, which is needed for accessability.

Resolves: MWPW-161923

Before	After

Test URLs:

• Before: https://main--milo--adobecom.hlx.page/docs/library/kitchen-sink/tab-block
• After: https://tab-nested-focus--milo--adobecom.hlx.page/docs/library/kitchen-sink/tab-block

[aem-code-sync]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed.
In case there are problems, just click a checkbox below to rerun the respective action.

• Re-run PSI checks
• Re-sync branch

Commits

• a056ab7 ✅ (latest)
• 5de577f ✅
• af47f3f ✅
• 6f80d48 ✅
• 9af968a ✅
• a8de8ce ✅
• b7e3405 ✅

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/docs/library/kitchen-sink/tab-block
🖥️	/docs/library/kitchen-sink/tab-block

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.46%. Comparing base (95d3ce2) to head (a056ab7).
Report is 27 commits behind head on stage.

Additional details and impacted files

@@            Coverage Diff             @@
##            stage    #3407      +/-   ##
==========================================
- Coverage   96.46%   96.46%   -0.01%     
==========================================
  Files         255      255              
  Lines       59430    59420      -10     
==========================================
- Hits        57329    57318      -11     
- Misses       2101     2102       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

This pull request is not passing all required checks. Please see this discussion for information on how to get all checks passing. Inconsistent checks can be manually retried. If a test absolutely can not pass for a good reason, please add a comment with an explanation to the PR.

[overmyheadandbody]

Narcis' comments are all valid, I have another note as well

[overmyheadandbody]

Looking good now, but our a11y partners are hinting that we might have additional issues to solve. I've requested details and will follow up.

[narcis-radu]

Looks good to me now, thank you!

[NadiiaSokolova]

Verified. Ready for Stage.
Testing details https://jira.corp.adobe.com/browse/MWPW-161923