front: platform layer is enabled only when OSM is

[sim51]

Close #5594

[codecov]

Codecov Report

Attention: 37 lines in your changes are missing coverage. Please review.

Comparison is base (61a0ebd) 19.45% compared to head (fc53957) 19.52%.
Report is 11 commits behind head on dev.

Files	Patch %	Lines
front/src/common/Map/Layers/Platforms.tsx	0.00%	9 Missing ⚠️
front/src/common/Map/Layers/GeoJSONs.tsx	0.00%	7 Missing ⚠️
...src/applications/editor/components/LayersModal.tsx	0.00%	5 Missing ⚠️
...ront/src/common/Map/Settings/MapSettingsLayers.tsx	0.00%	4 Missing ⚠️
front/src/applications/editor/Map.tsx	0.00%	3 Missing ⚠️
front/src/applications/referenceMap/Map.tsx	0.00%	2 Missing ⚠️
...mulationResult/components/SimulationResultsMap.tsx	0.00%	2 Missing ⚠️
...ainschedule/components/ManageTrainSchedule/Map.tsx	0.00%	2 Missing ⚠️
...lications/editor/tools/routeEdition/components.tsx	0.00%	1 Missing ⚠️
front/src/applications/editor/tools/types.ts	0.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #5757      +/-   ##
============================================
+ Coverage     19.45%   19.52%   +0.06%     
  Complexity     2327     2327              
============================================
  Files           907      907              
  Lines        106925   106989      +64     
  Branches       2579     2590      +11     
============================================
+ Hits          20801    20885      +84     
+ Misses        84609    84578      -31     
- Partials       1515     1526      +11     

Flag	Coverage Δ
front	8.41% <5.12%> (+0.08%)	⬆️

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