MQTT: Birdseye enabled/disabled and mode change support (#8291)

* support enabled and mode change for birdseye via mqtt

* resolve feedback from PR review
https://github.com/blakeblackshear/frigate/pull/8291#discussion_r1370083613

* change birdseye mode topic to set

* type in the docs

* these commented out lines should have never been in here

frigate/types.py

@@ -25,6 +25,8 @@ class CameraMetricsTypes(TypedDict):
     skipped_fps: Synchronized
     audio_rms: Synchronized
     audio_dBFS: Synchronized
+    birdseye_enabled: Synchronized
+    birdseye_mode: Synchronized
 
 
 class PTZMetricsTypes(TypedDict):