[Area Triggers and Actions] name light_action hard coded in area_triggers.py

[besynnerlig]

Descrption of the bug The function name light_action function has been hard coded in the area_trigger.py as

                        if not action_function_names or "light_action" in action_function_names:
                            start_action(item, True if event is not None else trigger_group.state in [ON, OPEN], "light_action")

The following modified code works better for me:

                        if not action_function_names or area_triggers_and_actions_dict["default_action_function"] in action_function_names:
                            start_action(item, True if event is not None else trigger_group.state in [ON, OPEN], area_triggers_and_actions_dict["default_action_function"])

The issue was originally discussed as here.

[5iver]

Resolved in #375