Implements target_low and target_high substitutions

Solves #1418

nspanel_esphome_addon_climate_cool.yaml

@@ -9,11 +9,7 @@
 ---
 substitutions:
   ### Local thermostat defaults ###
-  # https://esphome.io/components/climate/thermostat.html
-  cooler_relay: "0"  # Select 1 for "Relay 1", 2 for "Relay 2" or "0" to a dummy switch/disabled
-  # https://esphome.io/components/climate/index.html#base-climate-configuration
   temp_min: "15"
-  temp_max: "45"
 
   ##### DO NOT CHANGE THIS #####
   addon_climate_cool: "true"
@@ -27,10 +23,11 @@ climate:
       - switch.turn_on: relay_${cooler_relay}
     preset:
       - name: "Off"
-        default_target_temperature_high: ${temp_max} ${temp_units}
+        default_target_temperature_high: ${target_high} ${temp_units}
         mode: "off"
       - name: Home
-        default_target_temperature_high: 24 ${temp_units}
+        default_target_temperature_high: ${target_high} ${temp_units}
+        mode: "cool"
 
 packages:
   climate_base_package: !include advanced/esphome/nspanel_esphome_addon_climate_base.yaml