Reduce the overbearingness of stunmeta

[babayetu83]

make it more tied to stamina than anything

make stamina more important and make managing it more important. make stun duration be based on your stamina pool or something so that way stuns become a way to finish somebody off and not an instant "i win" button. it would also encourage people to be more careful with how they engage because if they burn through all of their stamina then they're leaving themselves wide open to get stunned