allow setting size and cropping of snapshots and best.jpg endpoint

config/config.example.yml

@@ -162,6 +162,13 @@ cameras:
     ################
     take_frame: 1
 
+    ################
+    # MQTT settings
+    ################
+    # mqtt:
+    #   crop_to_region: True
+    #   snapshot_height: 300
+
     ################
     # This will save a clip for each tracked object by frigate along with a json file that contains
     # data related to the tracked object. This works by telling ffmpeg to write video segments to /cache