ProblemFunction._compute_output and ProblemFunction._compute_jacobian have wrong return names

There is a confusing naming in both methods, I was trying to debug something and it required me to track input_value, I kept seeing the value change for no reason until I found this:

    def _compute_output(self, input_value: NumberArray) -> NumberArray:
        """Compute the output value from an input value.

        Args:
            input_value: The input value.

        Returns:
            The output value.
        """
        for func in self._output_evaluation_sequence:
            input_value = func(input_value)  # This should be output_value

        return input_value # This should be output_value

Same here:

    def _compute_jacobian(self, input_value: NumberArray) -> NumberArray:
        """Compute the Jacobian from an input value.

        Args:
            input_value: The input value.

        Returns:
            The Jacobian.
        """
        for func in self._jacobian_evaluation_sequence:
            input_value = func(input_value)

        return input_value