Function updateStep

src/tailwind/Components/Stepper/Stepper.jsx:28–32

  const isLastStep = currentStep === totalSteps;

  const updateStep = newStep => {
    setCurrentStep(newStep);
    if (newStep > totalSteps) onFinalStepCompleted();
    else onStepChange(newStep);
  };

  const handleBack = () => {
    if (currentStep > 1) {