front: update display in rolling stock editor

[theocrsb]

close #8370

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 36.98%. Comparing base (c02e207) to head (a02136c).
Report is 1 commits behind head on dev.

Files	Patch %	Lines
...ents/RollingStockEditor/RollingStockEditorForm.tsx	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #8484      +/-   ##
============================================
- Coverage     36.99%   36.98%   -0.01%     
  Complexity     2168     2168              
============================================
  Files          1271     1271              
  Lines        118008   118008              
  Branches       3174     3174              
============================================
- Hits          43652    43647       -5     
- Misses        72481    72486       +5     
  Partials       1875     1875              

Flag	Coverage Δ
core	74.90% <ø> (ø)
editoast	66.33% <ø> (-0.02%)	⬇️
front	15.95% <0.00%> (ø)
gateway	2.20% <ø> (ø)
osrdyne	2.71% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	72.91% <ø> (ø)

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[kmer2016]

LGTM and tested !

[RomainValls]

LGTM and Tested ✅