Scale to minimum size from center

[bedeoverend]

If the image is too small to edit, the editor automatically scales up to the minimum size - this just adjusts the height / width of the image, which means it scales from the top left origin point. Instead this should adjust left / top to account for the change in size so it appears it's scaling from the center of the image.

[madeleineostoja]

This should also be smoothly transitioned, which I can tackle once this is fixed (should just be able to apply CSS transforms then reset bounds in next render frame)