Invalid error handling in get_solo tag

[Viicos]

The following:

django-solo/solo/templatetags/solo_tags.py

Lines 20 to 29 in e06af9a

	model_class: type[SingletonModel] = apps.get_model(app_label, model_name)
	if not model_class:
	raise template.TemplateSyntaxError(_(
	"Could not get the model name '%(model)s' from the application "
	"named '%(app)s'" % {
	'model': model_name,
	'app': app_label,
	}
	))
	return model_class.get_solo()

shouldn't happen, as get_model will raise a LookupError if the app and/or model doesn't exist. It should probably be:

try:
    model_class: type[SingletonModel] = apps.get_model(app_label, model_name)
except LookupError:
    raise template.TemplateSyntaxError(
        _(
            "Could not get the model name '{model}' from the application named '{app}'"
        ).format(model=model_name, app=app_label)
    )
return model_class.get_solo()

[johnthagen]

@Viicos If you are able to fix and add a test, that would be awesome.