feat: Top navigation custom identity

[pan-kot]

Description

Related links, issue #, if available: n/a

How has this been tested?

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

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (7c06c07) 94.72% compared to head (26a031f) 94.70%.

Files	Patch %	Lines
src/top-navigation/internal.tsx	66.66%	3 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1912      +/-   ##
==========================================
- Coverage   94.72%   94.70%   -0.03%     
==========================================
  Files         659      659              
  Lines       17929    17935       +6     
  Branches     5932     5937       +5     
==========================================
+ Hits        16984    16986       +2     
- Misses        880      883       +3     
- Partials       65       66       +1     

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