[PUI] Make breadcrumbs adjustable

[matmair]

Makes usage of breadcrumbs more uniform and adds a user setting to optionally show the current item in the breadcrumbs too.

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[matmair]

see #7962

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 85.50%. Comparing base (8bea3ca) to head (f946fed).
Report is 9 commits behind head on master.

Files with missing lines	Patch %	Lines
src/frontend/src/components/nav/PageDetail.tsx	66.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8027      +/-   ##
==========================================
- Coverage   85.54%   85.50%   -0.05%     
==========================================
  Files        1177     1177              
  Lines       52024    52176     +152     
  Branches     2118     2120       +2     
==========================================
+ Hits        44503    44611     +108     
- Misses       6989     7024      +35     
- Partials      532      541       +9     

Flag	Coverage Δ
backend	87.35% <ø> (-0.02%)	⬇️
pui	69.26% <66.66%> (+0.18%)	⬆️

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[SchrodingersGat]

@matmair it'd be great to get this one closed out soon if we can :)

[matmair]

@SchrodingersGat ready for review and merge

[SchrodingersGat]

@matmair looks very good, just a small change requested regarding variable naming

[SchrodingersGat]

Thanks @matmair :)