Update some of the ability descriptions

Some of the ability descriptions don't give all the necessary information or have incorrect information. One example is the survivalist metabolism which doesn't detail what the player can eat at all unlike the other metabolism abilities. Another are the hide abilities, such as thick scales says increased turning radius while lightweight says "loss of turn radius". It should actually say improved and worsened respectively, as increased turn radius implies that it would be taking wider turns which would be worse turning, while decreased or loss of turn radius would be improved turning as the radius is shorter.

There probably are a couple of other updates that could be made to other ability descriptions, but those are the ones that stood out to me most as they lacked seemingly necessary information or had incorrect information.