Fix missing updates of AQI for CO2 sensor

The switch status_light is supposed to toggle whether the LED
reflects the current air quality,
but turning it off also disabled updates to the AQI text sensor,
leading to outdated values in HomeAssistant.

Now the text sensor is always updated
and the switch only controls the LED.

athom-scd40-sensor.yaml

@@ -143,11 +143,13 @@ sensor:
       name: "CO2"
       id: "co2"
       on_value:
-        if:
-          condition:
-            switch.is_on: status_light
-          then:
-            - script.execute: update_aqi
+        - script.execute:
+            id: update_aqi
+        - if:
+            condition:
+              switch.is_on: status_light
+            then:
+              - script.execute: update_light
     temperature:
       name: "Temperature"
       id: "temperature"
@@ -326,14 +328,37 @@ script:
     then:
       - if:
           condition:
-            or:
-              - sensor.in_range:
-                  id: co2
-                  above: 1500
+              sensor.in_range:
+               id: co2
+               above: 1500
           then:
             - text_sensor.template.publish:
                 id: aqi
                 state: Bad
+          else:
+            - if:
+                condition:
+                    sensor.in_range:
+                      id: co2
+                      above: 800
+                      below: 1500
+                then:
+                  - text_sensor.template.publish:
+                      id: aqi
+                      state: Acceptable
+                else:
+                  - text_sensor.template.publish:
+                      id: aqi
+                      state: Good
+  - id: update_light
+    mode: restart
+    then:
+      - if:
+          condition:
+            text_sensor.state:
+              id: aqi
+              state: Bad
+          then:
             - light.turn_on:
                 id: led
                 brightness: 100%
@@ -343,15 +368,10 @@ script:
           else:
             - if:
                 condition:
-                  or:
-                    - sensor.in_range:
-                        id: co2
-                        above: 800
-                        below: 1500
+                  text_sensor.state:
+                    id: aqi
+                    state: Acceptable
                 then:
-                  - text_sensor.template.publish:
-                      id: aqi
-                      state: Acceptable
                   - light.turn_on:
                       id: led
                       brightness: 50%
@@ -359,9 +379,6 @@ script:
                       green: 100%
                       blue: 0%
                 else:
-                  - text_sensor.template.publish:
-                      id: aqi
-                      state: Good
                   - light.turn_on:
                       id: led
                       brightness: 50%