Fix the scale of the image overview in the minimap
Another very small change: the scalebar throws errors in the console when the scale is at 0 and the scalebar doesn't show up
So I removed the scalebar when the scale is 0 to avoid errors, this shouldn't change anything for the user
Fix the scale of the image overview in the minimap
Another very small change: the scalebar throws errors in the console when the scale is at 0 and the scalebar doesn't show up So I removed the scalebar when the scale is 0 to avoid errors, this shouldn't change anything for the user