front: redesign of the list of trains on the results page

[theocrsb]

Mockup: https://www.sketch.com/s/2fb064cd-c483-46ac-bd30-72705fd63e75/a/el9lZmq

Closes #8601

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 324 lines in your changes missing coverage. Please review.

Project coverage is 37.08%. Comparing base (a5e9ca2) to head (c3fab23).
Report is 4 commits behind head on dev.

Files with missing lines	Patch %	Lines
...hedule/components/Timetable/TimetableTrainCard.tsx	0.00%	117 Missing ⚠️
...schedule/components/Timetable/TimetableToolbar.tsx	0.00%	105 Missing ⚠️
...trainschedule/components/Timetable/FilterPanel.tsx	0.00%	69 Missing and 1 partial ⚠️
...s/trainschedule/components/Timetable/Timetable.tsx	0.00%	30 Missing and 1 partial ⚠️
...tudies/components/Scenario/ScenarioDescription.tsx	0.00%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #8765      +/-   ##
============================================
+ Coverage     37.07%   37.08%   +0.01%     
  Complexity     2241     2241              
============================================
  Files          1262     1262              
  Lines        115972   115925      -47     
  Branches       3277     3277              
============================================
- Hits          42994    42993       -1     
+ Misses        71024    70978      -46     
  Partials       1954     1954              

Flag	Coverage Δ
core	74.79% <ø> (ø)
editoast	72.38% <ø> (-0.01%)	⬇️
front	15.17% <0.00%> (+0.01%)	⬆️
gateway	2.22% <ø> (ø)
osrdyne	2.57% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	86.46% <ø> (ø)

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[theocrsb]

https://www.sketch.com/s/2fb064cd-c483-46ac-bd30-72705fd63e75/p/27329D7B-C7CF-48C4-835A-1BA94627AF52/canvas

[kmer2016]

"Great work! Not much to say on the code side, just a small CSS suggestion. However, I have a few questions regarding the behavior:

• It seems like a third scrollbar has appeared.
  

• When clicking the checkbox on a TrainCard, the corresponding train gets selected, and the curves and output tables are updated with that train's info. Previously, the train was selected by clicking on the TrainCard itself, not the checkbox.

• In a new scenario, the 'No train' checkbox is always checked and cannot be unchecked.

• There's no longer any distinction for trains on which path projection has been performed.

• The hover effect on the first action button doesn't turn white like the others."

[SharglutDev]

Lgtm and tested, great job :) Thank you @emersion for participating as well !