editoast: move TrackSection items to editoast_schemas

[hamz2a]

Part of #7048

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 18.07%. Comparing base (53e5f14) to head (c3bb10f).
Report is 4 commits behind head on dev.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@              Coverage Diff              @@
##                dev    #7285       +/-   ##
=============================================
- Coverage     28.61%   18.07%   -10.54%     
+ Complexity     2299     2016      -283     
=============================================
  Files          1165      896      -269     
  Lines        140445   112614    -27831     
  Branches       2845     2743      -102     
=============================================
- Hits          40188    20357    -19831     
+ Misses        98607    90627     -7980     
+ Partials       1650     1630       -20     

Flag	Coverage Δ
core	77.38% <ø> (-1.18%)	⬇️
editoast	?
front	9.14% <ø> (-0.01%)	⬇️
gateway	2.43% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	83.96% <ø> (ø)

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.