Better light crossbows

[CoffeeBean]

With the new change making all crossbows a x3, which I think is overall better for crossbows, I wanted to suggest that light crossbows be changed from a d8 to a d6 with an increase to their critical mod from a x3 to a x4. Less per shot damage, but with a chance to do a huge amount of damage from a lucky crit- especially as players gain better ammo and if they have access to self buffs like bard song. Currently the only major difference between a light and heavy crossbow is the damage and weight.