Docs cleanup and Google-style tracker docstrings (#6751)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ultralytics/trackers/byte_tracker.py

@@ -45,6 +45,7 @@ class STrack(BaseTrack):
 
     def __init__(self, tlwh, score, cls):
         """Initialize new STrack instance."""
+        super().__init__()
         self._tlwh = np.asarray(self.tlbr_to_tlwh(tlwh[:-1]), dtype=np.float32)
         self.kalman_filter = None
         self.mean, self.covariance = None, None
@@ -370,7 +371,8 @@ class BYTETracker:
         """Returns the predicted tracks using the YOLOv8 network."""
         STrack.multi_predict(tracks)
 
-    def reset_id(self):
+    @staticmethod
+    def reset_id():
         """Resets the ID counter of STrack."""
         STrack.reset_id()