change default_model_config form @property to @staticmethod

[michaelraczycki]

Current design is shorter for usage inside the classes themselves, but when it comes to end user experience it forces initialization of the model class to take a look at customizable variables

[pdb5627]

This looks like something I could do, though I'd like to ask some clarification. It seems that starting in Python 3.11, @classmethod and @property cannot be chained. If the method is changed from a property to a class method, would you like it renamed from a noun (default_model_config) to a verb (e.g. get_default_model_config)? Or define a classproperty decorator so it can stay a property? Otherwise it's as straightforward as adding parentheses to references.

[michaelraczycki]

Hello @pdb5627, we don't want to chain the decorators, but only replace it (@property->@staticmethod). The main purpose of it is to remove the necesity of initialization of a model to see the default values from the user's standpoint. Yes, I think that the change to a verb should be done, but also it would require searching through the LinearModel and tests to replace it there