Zoom not working in FullScreen Mode (iOS and Android)

If using something like:

```
<ImageCarousel
  renderHeader={renderHeader}
  renderContent={renderImage}
  onIdxChange={onChange}
  zoomEnabled={true}>
  { children }
</ImageCarousel>
```
zoom feature is not working.

If not using custom `renderContent`, zoom is working but the images are small and pull to exit is not working.

RN version: 0.61.5