Improve Face Library Management (#17213)

* Set maximum number of face images to be kept

* Fix vertical camera scaling

* adjust wording

* Add attributes to search data

* Add button to train face from event

* Handle event id saving in API

frigate/api/event.py

@@ -701,6 +701,7 @@ def events_search(request: Request, params: EventsSearchQueryParams = Depends())
             for k, v in event["data"].items()
             if k
             in [
+                "attributes",
                 "type",
                 "score",
                 "top_score",