Shinco 30D: swap fan speeds

"1" is high, "2" is low.

Issue #509

custom_components/tuya_local/devices/shinco_30d_dehumidifier.yaml

@@ -34,9 +34,9 @@ secondary_entities:
         name: speed
         mapping:
           - dps_val: "0"
-            value: 50
-          - dps_val: "1"
             value: 100
+          - dps_val: "1"
+            value: 50
       - id: 8
         type: boolean
         name: oscillate