feat: Table renderAriaLive receives visibleItemsCount

[pan-kot]

Description

Adding visibleItemsCount argument to table's renderAriaLive so that the table can announce the difference in visible items when an expandable group is expanded or collapsed. For example:

1. Table renders - displaying clusters 1 to 10 of 35, 10 resources visible
2. User expands a group - displaying clusters 1 to 10 of 35, 13 resources visible
3. User loads more items for the group - displaying clusters 1 to 10 of 35, 16 resources visible
4. User changes filter - displaying clusters 1 to 10 of 17, 12 resources visible
5. User changes page - displaying clusters 11 to 17 of 17, 7 resources visible

How has this been tested?

• Unit tests
• Dry-run

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.34%. Comparing base (33d970f) to head (2c6ef98).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2165   +/-   ##
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  Coverage   95.34%   95.34%           
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  Files         687      687           
  Lines       18377    18377           
  Branches     6138     6138           
=======================================
  Hits        17521    17521           
  Misses        802      802           
  Partials       54       54           

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