Remove cold slowdown entirely

[polivilas]

So a quick test I performed recently by the way:
- Walk into a breached area: Freezing within 4-5 seconds, possibly less
- Get out of the breach and into a regular area: Takes over a minute to reach 'mildly cold' status, let alone 'room temperature'

If areas are going to be deathly cold I'd really prefer it if they at least didn't look literally identical to perfectly safe ones. Airlessness is one thing but an area that's cold enough to completely cripple human beings has got to get at least a bit foggy or frosty.

Blame engineers - It's not hard to heat the entire station to 50c, making cold less debilitating, with absolutely 0 downsides.