Method handleNext

src/tutorial/tutorialOverlay.js:171–178

* Handle next button click

()

   * Handle next button click
   */
  handleNext() {
    const currentStep = this.manager.getCurrentStep();
    if (currentStep === tutorialSteps.length - 1) {
      this.manager.complete();
    } else {
      this.manager.next();
    }
  }

  /**
   * Handle tutorial completion