Tracked object metadata changes (#15055)

* add enum and change topic name

* frontend renaming

* docs

* only display sublabel score if it it exists

* remove debug print

frigate/comms/dispatcher.py

@@ -22,7 +22,7 @@ from frigate.const import (
 )
 from frigate.models import Event, Previews, Recordings, ReviewSegment
 from frigate.ptz.onvif import OnvifCommandEnum, OnvifController
-from frigate.types import ModelStatusTypesEnum
+from frigate.types import ModelStatusTypesEnum, TrackedObjectUpdateTypesEnum
 from frigate.util.object import get_camera_regions_grid
 from frigate.util.services import restart_frigate
 
@@ -137,8 +137,14 @@ class Dispatcher:
             event.data["description"] = payload["description"]
             event.save()
             self.publish(
-                "event_update",
-                json.dumps({"id": event.id, "description": event.data["description"]}),
+                "tracked_object_update",
+                json.dumps(
+                    {
+                        "type": TrackedObjectUpdateTypesEnum.description,
+                        "id": event.id,
+                        "description": event.data["description"],
+                    }
+                ),
             )
 
         def handle_update_model_state():