Inspect and debug controls should be compatible

Currently, when enabling "inspect" mode on the canvas, all the debug controls disappear. I imagine @three did it that way to avoid shapes from debug controls themselves appearing in the Inspect window. That makes sense! But it's a little more annoying now with the pan/zoom controls that @kammitama5 added. They would be really useful during inspection; but the view resets when Inspect is clicked.

A deeper integration there would be very useful.