Icons: improve uv-sterilization icon

sun-wireless is a slightly better match than solar-power

custom_components/tuya_local/icons.json

@@ -269,7 +269,7 @@
                 "default": "mdi:power-sleep"
             },
             "uv_sterilization": {
-                "default": "mdi:solar-power"
+                "default": "mdi:sun-wireless"
             }
         }
     }