Decouple the lamp from the base air alarm sprite. (#37950)

a touch of verin here and a sprinkle of verin there

Resources/Prototypes/Entities/Structures/Wallmounts/air_alarm.yml

@@ -42,13 +42,12 @@
     - GasVent
     - GasScrubber
   - type: AtmosAlarmableVisuals
-    layerMap: "airAlarmBase"
+    layerMap: "airAlarmState"
     alarmStates:
       Normal: alarm0
-      Warning: alarm2
-      Danger: alarm1
-    setOnDepowered:
-      airAlarmBase: alarmp
+      Warning: alarm1
+      Danger: alarm2
+    hideOnDepowered: [ "airAlarmState" ]
   - type: Tag
     tags:
       - AirAlarm
@@ -81,8 +80,10 @@
   - type: Sprite
     sprite: Structures/Wallmounts/air_monitors.rsi
     layers:
+    - state: alarmp
+      map: ["airAlarmBase"]
     - state: alarm0
-      map: ["airAlarmBase"] # TODO: fire alarm enum
+      map: ["airAlarmState"] # TODO: fire alarm enum
     - state: alarmx
       map: ["enum.WiresVisualLayers.MaintenancePanel"]
   - type: Transform