Klarta Stor: add actual observed values from Klarta Forte 4

Since we don't know for sure what this device uses, include both the
documented and actual observed values from Klarta Stor 2 as alternatives.
As this is a read-only sensor, having extra entries should not be a problem.

PR #3546

custom_components/tuya_local/devices/klarta_stor2_purifier.yaml

@@ -137,7 +137,13 @@ entities:
             value: excellent
           - dps_val: good
             value: good
+          - dps_val: Good
+            value: good
+            hidden: true
           - dps_val: mild
             value: moderate
           - dps_val: poor
             value: poor
+          - dps_val: Poor
+            value: poor
+            hidden: true