Temporarily remove timeline, fix filter bug, fix signals pk

[nicolaswurtz]

• Timeline was faulty, and unusable with too much train. It's just hidden for now, for the time when we'll upgrade it ;)
• close Search in project does not work #5923 front: fix search in projects, studies and scenarios #5996

[codecov]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (d943cdf) 26.49% compared to head (871c1c8) 26.48%.

Files	Patch %	Lines
...ons/operationalStudies/views/SimulationResults.tsx	0.00%	4 Missing ⚠️
front/src/main/home.jsx	0.00%	3 Missing ⚠️
front/src/applications/operationalStudies/Home.tsx	0.00%	2 Missing ⚠️
.../applications/operationalStudies/views/Project.tsx	0.00%	2 Missing ⚠️
...rc/applications/operationalStudies/views/Study.tsx	0.00%	2 Missing ⚠️
front/src/common/Map/Layers/KPLabel.ts	0.00%	1 Missing ⚠️
...ents/ManageTrainSchedule/Allowances/Allowances.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #5992      +/-   ##
============================================
- Coverage     26.49%   26.48%   -0.01%     
  Complexity     2117     2117              
============================================
  Files           930      930              
  Lines        122674   122680       +6     
  Branches       2664     2664              
============================================
  Hits          32497    32497              
- Misses        88605    88611       +6     
  Partials       1572     1572              

Flag	Coverage Δ
core	79.01% <ø> (ø)
editoast	74.51% <ø> (ø)
front	9.31% <0.00%> (-0.01%)	⬇️
gateway	2.75% <ø> (ø)

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[clarani]

LGTM ! Tested ✅