front: stdcm: display the application date in the chosen language

[SarahBellaha]

Closes #10012

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.43%. Comparing base (b09fc36) to head (3c81b97).
Report is 3 commits behind head on dev.

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #10265      +/-   ##
==========================================
- Coverage   81.44%   81.43%   -0.02%     
==========================================
  Files        1058     1058              
  Lines      104282   104283       +1     
  Branches      722      722              
==========================================
- Hits        84936    84923      -13     
- Misses      19305    19319      +14     
  Partials       41       41              

Flag	Coverage Δ
editoast	73.57% <ø> (-0.05%)	⬇️
front	89.18% <100.00%> (+<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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[Akctarus]

Tested, works well, maybe you can also adapt the date so it can be displayed in the chosen language for anterior and posterior train

[Math-R]

lgtm