refactor: Centralize Examples Track typedef

[paulgessinger]

We want the examples to always write the same concrete track container to the white board

[codecov]

Codecov Report

Merging #1838 (61f0157) into main (aa3dea8) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 61f0157 differs from pull request most recent head ebc02c1. Consider uploading reports for the commit ebc02c1 to get more accurate results

@@            Coverage Diff             @@
##             main    #1838      +/-   ##
==========================================
+ Coverage   49.50%   49.53%   +0.03%     
==========================================
  Files         407      407              
  Lines       22646    22629      -17     
  Branches    10334    10326       -8     
==========================================
  Hits        11210    11210              
+ Misses       4247     4230      -17     
  Partials     7189     7189              

Impacted Files	Coverage Δ
Core/include/Acts/Geometry/Extent.hpp	95.00% <0.00%> (ø)
Core/include/Acts/Geometry/ProtoDetector.hpp	100.00% <0.00%> (ø)
...de/Acts/Geometry/KDTreeTrackingGeometryBuilder.hpp	100.00% <0.00%> (ø)
...lude/Acts/Navigation/SurfaceCandidatesUpdators.hpp
Core/include/Acts/Navigation/NavigationState.hpp
.../include/Acts/Navigation/DetectorVolumeFinders.hpp
...include/Acts/Navigation/DetectorVolumeUpdators.hpp
...re/include/Acts/Navigation/NavigationDelegates.hpp
...nclude/Acts/Navigation/NavigationStateUpdators.hpp
Core/include/Acts/Geometry/NavigationState.hpp	85.71% <0.00%> (ø)
... and 7 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[github-actions]

📊 Physics performance monitoring for ebc02c1

Full report
Seeding: seeded, truth estimated, orthogonal
CKF: seeded, truth smeared, truth estimated, orthogonal
IVF: seeded, truth smeared, truth estimated, orthogonal
Ambiguity resolution: seeded, orthogonal
Truth tracking
Truth tracking (GSF)

Vertexing

Vertexing vs. mu

IVF seeded

IVF truth_smeared

IVF truth_estimated

IVF orthogonal

Seeding

Seeding seeded

Seeding truth_estimated

Seeding orthogonal

CKF

CKF seeded

CKF truth_smeared

CKF truth_estimated

CKF orthogonal

Ambiguity resolution

seeded

Truth tracking (Kalman Filter)

Truth tracking

Truth tracking (GSF)

Truth tracking