front: modify getScaleDomainFromValues function

[SarahBellaha]

Takes account of the last comment in this PR #6031

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (fb39845) 26.50% compared to head (1d66055) 26.55%.
Report is 4 commits behind head on dev.

Files	Patch %	Lines
...lt/components/ChartHelpers/enableInteractivity.tsx	0.00%	3 Missing ⚠️
...ult/components/SpeedSpaceChart/SpeedSpaceChart.tsx	0.00%	3 Missing ⚠️
...omponents/ChartHelpers/getScaleDomainFromValues.ts	0.00%	2 Missing ⚠️
.../simulationResult/components/SpaceCurvesSlopes.tsx	0.00%	2 Missing ⚠️
...ons/operationalStudies/views/SimulationResults.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #6042      +/-   ##
============================================
+ Coverage     26.50%   26.55%   +0.05%     
  Complexity     2117     2117              
============================================
  Files           931      931              
  Lines        122820   122902      +82     
  Branches       2670     2670              
============================================
+ Hits          32549    32633      +84     
+ Misses        88693    88691       -2     
  Partials       1578     1578              

Flag	Coverage Δ
core	78.97% <ø> (ø)
editoast	74.66% <ø> (+0.10%)	⬆️
front	9.31% <0.00%> (+<0.01%)	⬆️
gateway	2.75% <ø> (ø)

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[SharglutDev]

Lgtm, tested