fix power plugs not saving switch state

packages/nous_a1t.yaml

@@ -4,6 +4,7 @@ substitutions:
 
 esp8266:
   board: esp8285
+  restore_from_flash: true
 
 light:
   - platform: status_led
@@ -13,7 +14,6 @@ light:
       inverted: true
 
 binary_sensor:
-  # toggle relay on/off
   - platform: gpio
     id: button_state
     pin:
@@ -25,8 +25,8 @@ binary_sensor:
 switch:
   - platform: template
     name: "Power"
-    optimistic: true
     id: power
+    restore_mode: RESTORE_DEFAULT_OFF
     lambda: |-
       if (id(relay).state) {
         return true;