front: add route e2e test for operational studies

[Maymanaf]

Closes #7912

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 33 lines in your changes missing coverage. Please review.

Project coverage is 28.25%. Comparing base (ea0f6c9) to head (b1862de).
Report is 12 commits behind head on dev.

Files	Patch %	Lines
...s/pathfinding/components/Itinerary/ItineraryV2.tsx	0.00%	11 Missing ⚠️
...omponents/Itinerary/DisplayItinerary/v2/ViasV2.tsx	0.00%	7 Missing ⚠️
...inding/components/Itinerary/ModalSuggestedVias.tsx	0.00%	6 Missing ⚠️
...ts/Itinerary/DisplayItinerary/v2/DestinationV2.tsx	0.00%	3 Missing ⚠️
...ponents/Itinerary/DisplayItinerary/v2/OriginV2.tsx	0.00%	3 Missing ⚠️
...thfinding/components/Pathfinding/PathfindingV2.tsx	0.00%	2 Missing ⚠️
front/src/common/BootstrapSNCF/NavBarSNCF.tsx	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #8042      +/-   ##
============================================
+ Coverage     28.13%   28.25%   +0.12%     
- Complexity     2120     2123       +3     
============================================
  Files          1302     1300       -2     
  Lines        158914   158376     -538     
  Branches       3179     3187       +8     
============================================
+ Hits          44715    44757      +42     
+ Misses       112293   111707     -586     
- Partials       1906     1912       +6     

Flag	Coverage Δ
core	75.43% <ø> (+<0.01%)	⬆️
editoast	70.42% <ø> (+0.02%)	⬆️
front	10.02% <0.00%> (+0.05%)	⬆️
gateway	2.03% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	73.18% <ø> (ø)

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[clarani]

LGTM ✅ Nice PR :)

Can you please squash your commits since they do not seem to be atomic ?

[achrafmohye]

Looks good to me 👍