- fixed issues with positioning (in 2d) of overlays
- rewriting zoomInOnObject helper:
 * previous logic & computations were actually false (
distance from camera instead of distance from object etc etc)
 * focusing in on annotations for example (off-center items in general)
now works correctly
 * proximity to target object is now more coherent
 * needs more cleanup (proximity param should be distance (from target))
etc