PDA viewing effect

[JOELED]

I don't really care strongly either way about an indicator being added or not outside of traitors and spies, which I really really don't think should have an indicator. Having your PDA out in hand during spy rounds is already a known "this is probably a spy" thing that leads to people getting caught, being unable to view the bounties at all without people knowing would be a huge blow to the gamemode IMO. Also, if going in the direction of a visual icon over people with their PDA out, it's worth keeping in mind how cramped the real estate is already for visual icons with sechud/prodoc goggles, antag icons, typing and custom emote indicators, and offline status indicators. There's not much room to work with that wouldn't be getting in the way of something else