Synchronize with nearest camera position

[kllgjc]

Hey, love this viewer! One thing that I think would definitely help is to add a wdiget that gives a side-by-side view of the nearest camera image as you zoom and rotate around the splat, and the ability to jump the viewer into that exact camera position as well for a direct comparison.

[Florian-Barthel]

I agree, this would be awesome. I will keep this in mind when developing new features. But feel free to add this in a PR, if you have the time