Renamed general and mode constants and implemented a check to verify that constants are just defined ones over the whole repository

roles/web-app-keycloak/templates/env.j2

@@ -25,7 +25,7 @@ KC_BOOTSTRAP_ADMIN_USERNAME=    "{{applications | get_app_conf(application_id, '
 KC_BOOTSTRAP_ADMIN_PASSWORD=    "{{applications | get_app_conf(application_id, 'credentials.administrator_password', True)}}"
 
 # Enable detailed logs
-{% if enable_debug | bool %}
+{% if MODE_DEBUG | bool %}
 KC_LOG_LEVEL=DEBUG
 KC_LOG_CONSOLE_ENABLED=true
 {% endif %}