[MIRROR] Fixed a rare custom shuttle docker client crash

[ghost]

Original PR: tgstation/tgstation#33086

Fixed a bug caused by images with high pixel_x and pixel_y values. I am fairly certain this is a BYOND bug.

To reproduce the crash:

• Use the syndicate shuttle docking computer and move the eye somewhere without placing the landing zone
• Go to the white ship and place a landing zone directly on top of the invisible syndicate shuttle docker's eye
• Move the camera to one side until you can barely see the landing zone on the edge of your screen
• Hit the end camera view button

If one of the landing zone images was over the center of the syndicate shuttle docker eye and if your camera was in a place where you would be able to see the syndicate shuttle docker eye (if it were not invisible to you) but not the turf that it was centered on, your dreamseeker will freeze and you will have to end the program.

Here is the BYOND bug report for what I am fairly certain is causing this: http://www.byond.com/forum/?post=2294466

The same bug is probably also causing #33000