Generated operationId can start with number breaking many openapi generators

When not providing an operationId a random UUID is generated and cut off.

django-ninja-extra/ninja_extra/controllers/base.py

Lines 450 to 453 in f12eaeb

    
           def _add_operation_from_route_function(self, route_function: RouteFunction) -> None: 
        
               # converts route functions to Operation model 
        
               if route_function.route.route_params.operation_id is None: 
        
                   route_function.route.route_params.operation_id = f"{str(uuid.uuid4())[:8]}_controller_{route_function.route.view_func.__name__}"

This UUID can beginn with a number which is not an valid type name in, for instance typescript type or a valid method name in PHP.

It would be ideal to guarantee that the randomly generated string starts with a letter.

@Loeffeldude will fix this shortly

	def _add_operation_from_route_function(self, route_function: RouteFunction) -> None:
	# converts route functions to Operation model
	if route_function.route.route_params.operation_id is None:
	route_function.route.route_params.operation_id = f"{str(uuid.uuid4())[:8]}_controller_{route_function.route.view_func.__name__}"