Use correct image when downloading

[mtaylor-tbpm]

When right clicking a turntable image to download or open in new tab/window in Chrome, the last image in the array is used, not the current image

[nerdyman]

This should be simple enough to implement. I think the images just need to default to pointer-events: none and the active image needs pointer-events: auto.

I'll take a look, also open to PRs!