feat: Add support to AppLayoutToolbar for collapsed side navigation

[jkuelz]

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]

Codecov Report

❌ Patch coverage is 97.82609% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 97.59%. Comparing base (169f832) to head (d3c5abc).

Files with missing lines	Patch %	Lines
...visual-refresh-toolbar/skeleton/skeleton-parts.tsx	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4688      +/-   ##
==========================================
- Coverage   97.60%   97.59%   -0.01%     
==========================================
  Files         950      950              
  Lines       30714    30737      +23     
  Branches    11276    11296      +20     
==========================================
+ Hits        29977    29999      +22     
- Misses        690      691       +1     
  Partials       47       47              

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