front: clean GEV

[clarani]

close #3573

This PR:

• removes unused params in functions or component
• reorders params for more clarity
• introduces constants
• transform the GEV which takes now only the simulation of the selected train (no need for the complete simulation + the selected train index)
• rename variables

[codecov]

Codecov Report

Merging #3572 (7b64eab) into dev (6073cd0) will increase coverage by 0.09%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                dev    #3572      +/-   ##
============================================
+ Coverage     68.06%   68.15%   +0.09%     
  Complexity     1897     1897              
============================================
  Files           420      420              
  Lines         20972    21120     +148     
  Branches       1534     1535       +1     
============================================
+ Hits          14274    14394     +120     
- Misses         5983     6010      +27     
- Partials        715      716       +1     

Flag	Coverage Δ
front	56.87% <100.00%> (+0.37%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...nents/SimulationResults/simulationResultsConsts.ts	100.00% <100.00%> (ø)

... and 5 files with indirect coverage changes

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[Yohh]

wunderbar!

[alexandredamiron]

Très bien, en as tu profité pour check que mustRedraw était encore utile ? En principe il doit virer dès que possible