front: lmr fix intermediate op id collision

[Wadjetz]

fix #10375

Use UUID instead of react-id-generator. The latter is a sequential ID generator with a global counter that can reset when the page is refreshed and data is restored from localStorage or the window object, potentially resulting in duplicated IDs.

• Fix tests

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Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 81.81%. Comparing base (5bd1d85) to head (2dd16b7).
Report is 3 commits behind head on dev.

Files with missing lines	Patch %	Lines
front/src/reducers/osrdconf/stdcmConf/index.ts	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #10445      +/-   ##
==========================================
- Coverage   81.81%   81.81%   -0.01%     
==========================================
  Files        1073     1073              
  Lines      106664   106666       +2     
  Branches      730      730              
==========================================
  Hits        87267    87267              
- Misses      19358    19360       +2     
  Partials       39       39              

Flag	Coverage Δ
editoast	74.29% <ø> (-0.01%)	⬇️
front	89.34% <83.33%> (+<0.01%)	⬆️
gateway	2.18% <ø> (ø)
osrdyne	3.28% <ø> (ø)
railjson_generator	87.50% <ø> (ø)
tests	87.05% <ø> (ø)

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[SharglutDev]

Lgtm and tested (you probably need to rebase)

[woshilapin]

Looks fine although, I'm pretty sure I don't understand it in the details 😄

[emersion]

Very nice, thanks!

[Maymanaf]

LGTM for e2e tests