Some minor QOL for radnomiz_squad proc

[blackcrystall]

About the pull request

New codes line unlocked preveusly by handsome sg2002 now used correctly, removed shuffle, because we don't need it, we preveusly had code for balancing number of roles

I really forgot about one thing, that this guy removed (thanks), and fixed marines from going into one squad, one
This thing >>

		if(preferred_squad == "None")
			if(squad.put_marine_in_squad(human))
				return

stopped us from going thru balancing code for marines by jobs amount in every squad, if they don't have fav one or it's full

Explain why it's good for the game

Aaaaaaaaa

Changelog

🆑
code: randomize_squad code qol
/:cl: