front: fix stdcm style on simulation results

[sim51]

Fix #10303

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.61%. Comparing base (46bea7d) to head (e647ec4).
Report is 3 commits behind head on dev.

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #10304      +/-   ##
==========================================
- Coverage   81.62%   81.61%   -0.01%     
==========================================
  Files        1063     1063              
  Lines      105400   105426      +26     
  Branches      722      722              
==========================================
+ Hits        86035    86047      +12     
- Misses      19324    19338      +14     
  Partials       41       41              

Flag	Coverage Δ
editoast	73.64% <ø> (-0.05%)	⬇️
front	89.33% <ø> (+<0.01%)	⬆️
gateway	2.18% <ø> (ø)
osrdyne	3.28% <ø> (ø)
railjson_generator	87.50% <ø> (ø)
tests	87.05% <ø> (ø)

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[clarani]

LGTM