Add validation actions (#693)

* Add validation action

* Clean-up yaml

Removed trailing spaces

* Clean-up yaml

Removed trailing spaces

* Clean-up yaml

Removed trailing spaces

* Clean-up yaml

Removed trailing spaces

* Clean-up yaml

Removed trailing spaces

* Update validate_yaml.yml

* Validate on push

Only for nspanel_esphome.yaml and nspanel_blueprint.yaml

* Extending warnings for +255-char lines

* Update validate_yaml.yml

* Clean-up yaml

* Update validate_yaml.yml

* Clean-up yaml

* Clean-up yaml

* Clean-up yaml

* Clean-up yaml

* Clean-up yaml

* Update and rename validate_yaml.yml to validate_blueprint.yml

* Create validate_esphome.yml

* Clean-up yaml

custom_configuration/climate.yaml

@@ -4,7 +4,7 @@ climate:
     name: NSPanel Büro
     heater: switch.nspanel_buro_relay_2
     target_sensor: sensor.nspanel_buro_temperature
-    min_temp: 13  
+    min_temp: 13
     max_temp: 27
     ac_mode: false
     target_temp: 22