fix: Support previous breadcrumbs versions in deduplication

[just-boris]

Description

Support combination "new app layout (widget)" + "old breadcrumbs (not widget)" for this change #2895

We do not know if the breadcrumb is going to globalize or not. To support both use-cases we render both own and discovered breadcrumb and then hide the globalized one with CSS

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

How has this been tested?

• Tested in my dev pipeline for multi-version use-case
• Added a unit test on the new runtime API

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 96.24%. Comparing base (3914399) to head (a3672c6).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2935      +/-   ##
==========================================
- Coverage   96.24%   96.24%   -0.01%     
==========================================
  Files         767      767              
  Lines       21709    21708       -1     
  Branches     7427     7027     -400     
==========================================
- Hits        20894    20893       -1     
- Misses        762      807      +45     
+ Partials       53        8      -45     

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