feat(balance): double stone pouch capacity.

[Lamandus]

Purpose of change

The stone pouch was inferior in nearly any way to drop leg pouches. The maximum they could hold was 750 ml (per leg) so 1500 ml for 2 pouches, with a encumbrance of 4. Drop leg pouches have a capacity of 4000 ml and also an encumbrance of 4.

Describe the solution

Doubling the amount makes 2 stone pouches hold 2.500 ml of stones, while still lower than the drop leg, it takes less time to reload, and is easier to craft. Having more than 40 stones (for 2 pouches) is rarely needed.

Describe alternatives you've considered

Lowering encumbrance to 3 or even 2.

Testing

Additional context

Checklist

[Zireael07]

Drop leg pouches are a modern, specialized item, obviously a survival/pre-modern item will be inferior

[Lamandus]

Drop leg pouches are a modern, specialized item, obviously a survival/pre-modern item will be inferior

correct. It still is, but don't forget, it can't carry anything else than stone "ammo", so it is extremely specialized.