Use account-lock for child lock icons.

Based on idea from @ed-holland in issue #41

custom_components/tuya_local/devices/beca_bhp6000_thermostat_c.yaml

@@ -60,6 +60,11 @@ secondary_entities:
       - id: 7
         name: lock
         type: boolean
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"
   - entity: light
     name: Display
     dps:

custom_components/tuya_local/devices/beca_bhp6000_thermostat_f.yaml

@@ -61,6 +61,11 @@ secondary_entities:
       - id: 7
         name: lock
         type: boolean
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"
   - entity: light
     name: Display
     dps:

custom_components/tuya_local/devices/electriq_cd25pro_dehumidifier.yaml

@@ -83,4 +83,8 @@ secondary_entities:
       - id: 7
         type: boolean
         name: lock
-          
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"

custom_components/tuya_local/devices/goldair_dehumidifier.yaml

@@ -242,6 +242,11 @@ secondary_entities:
       - id: 7
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"
   - entity: switch
     name: Air Clean
     icon: "mdi:air-purifier"

custom_components/tuya_local/devices/goldair_geco_heater.yaml

@@ -40,4 +40,9 @@ secondary_entities:
       - id: 2
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"
 

custom_components/tuya_local/devices/goldair_gpcv_heater.yaml

@@ -48,3 +48,8 @@ secondary_entities:
       - id: 2
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"

custom_components/tuya_local/devices/goldair_gpph_heater.yaml

@@ -136,3 +136,8 @@ secondary_entities:
       - id: 6
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"

custom_components/tuya_local/devices/kogan_kahtp_heater.yaml

@@ -41,3 +41,8 @@ secondary_entities:
       - id: 6
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"

custom_components/tuya_local/devices/kogan_kawfhtp_heater.yaml

@@ -40,3 +40,8 @@ secondary_entities:
       - id: 2
         type: boolean
         name: lock
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"

custom_components/tuya_local/devices/lexy_f501_fan.yaml

@@ -64,6 +64,11 @@ secondary_entities:
       - id: 16
         name: lock
         type: boolean
+        mapping:
+          - dps_val: true
+            icon: "mdi:account-lock"
+          - dps_val: false
+            icon: "mdi:account-lock-open"
   - entity: switch
     name: Sound
     dps: