chore: Test analytics metadata in a table with empty header

[Al-Dani]

Description

Add a test to cover use case from this PR.

Related links, issue #, if available: AWSUI-59898

How has this been tested?

locally

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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.27%. Comparing base (8f5431a) to head (5e7a60a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #2948    +/-   ##
========================================
  Coverage   96.27%   96.27%            
========================================
  Files         770      770            
  Lines       21752    21752            
  Branches     7380     7036   -344     
========================================
  Hits        20941    20941            
- Misses        758      803    +45     
+ Partials       53        8    -45     

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