Difficulty rebalancing patch — Voltorometer Recharged + Steam update #829393

The game has been out for a month now and I've decided to make some changes to help out with the difficulty based on feedback and some of the things I've seen, the changes are as follows: General changes Increased normal difficulty health from 3 to 4 Slightly decreased the darkness in dark levels Increased the player's vision radius in dark levels Increased the delay between waking the worm enemies and them attacking you Increased the player's friction and acceleration on ice levels to reduce how slippy it is Level specific changes W2-3: Increased the time platforms stay up by an extra 0.5 seconds across the whole level W2-4: Changed some of the enemy spawns to only appear in hard mode W2-5: Decreased the amount of time the lava geysers are active so that's more of a gap to get through W3-5: Increased the amount of time it takes for the enemies to start chasing you after the lights are t...