Fix automations listening to HOMEASSISTANT_START (#6936)

* Fire EVENT_HOMEASSISTANT_START automations off right away while starting

* Actually have core state be set to 'starting' during boot

* Fix correct start implementation

* Test and deprecate event automation platform on start

* Fix doc strings

* Remove shutting down exception

* More strict when to mark an instance as finished

* Add automation platform to listen for start/shutdown

* When we stop we should wait till it's all done

* Fix testing

* Fix async bugs in tests

* Only set UVLOOP when hass starts from CLI

* This hangs normal asyncio event loop

* Clean up Z-Wave node entity test

homeassistant/components/switch/litejet.py

@@ -47,12 +47,12 @@ class LiteJetSwitch(SwitchDevice):
     def _on_switch_pressed(self):
         _LOGGER.debug("Updating pressed for %s", self._name)
         self._state = True
-        self._hass.async_add_job(self.async_update_ha_state())
+        self.schedule_update_ha_state()
 
     def _on_switch_released(self):
         _LOGGER.debug("Updating released for %s", self._name)
         self._state = False
-        self._hass.async_add_job(self.async_update_ha_state())
+        self.schedule_update_ha_state()
 
     @property
     def name(self):