Update smart request parameter handling (#1061)

Changes to the smart request handling:
- Do not send params if null
- Drop the requestId parameter
- get_preset_rules doesn't send parameters for preset component version less than 3
- get_led_info no longer sends the wrong parameters
- get_on_off_gradually_info no longer sends an empty {} parameter

kasa/smart/modules/lighttransition.py

@@ -234,7 +234,7 @@ class LightTransition(SmartModule):
         if self._state_in_sysinfo:
             return {}
         else:
-            return {self.QUERY_GETTER_NAME: {}}
+            return {self.QUERY_GETTER_NAME: None}
 
     async def _check_supported(self):
         """Additional check to see if the module is supported by the device."""