message: Reset large title appearance when bartint cleared
diff: appearance.backButtonAppearance = [UIBarButtonItemAppearance new];
  appearance.backButtonAppearance.normal.titleTextAttributes = [self backAttributes];
  self.reactViewController.navigationItem.standardAppearance = appearance;
  - if (self.barTintColor) {
  - self.reactViewController.navigationItem.scrollEdgeAppearance = appearance;
  - }
  + self.reactViewController.navigationItem.scrollEdgeAppearance = self.barTintColor ? appearance : nil;
  } else {
  bool transparent = self.barTintColor && CGColorGetAlpha(self.barTintColor.CGColor) == 0;
  [navigationBar setValue:@(transparent) forKey:@"hidesShadow"];
  