Fixes the previews in the character setup screen

As the title says, this was most noticeable with the cargo tech and lawyer which were both using uniform sprites that don't exist anywhere in the game or code besides the .dmi. This also fixes some of the previews for things in the hand being covered up. Everything has been set to show exactly how you appear upon spawning with the exception of the headset sprites because who cares. The AI and cyborg settings removed at the very bottom don't matter either, you'll just appear naked with whatever underwear you have set.