Update kilo_plus_air_purifier.yaml

Capitalized P in purifier for the top level name

custom_components/tuya_local/devices/kilo_plus_air_purifier.yaml

@@ -1,4 +1,4 @@
-name: Air purifier
+name: Air Purifier
 products:
   - id: ueldkqa5dggrzrio
     name: Kilo Plus Air purifier