Cold Snap target prioritisation.

Cold Snap targeting needs readjusting as it feels terrible to use right now.

I use it to shatter frozen targets and i freeze them with frost bolt scattered shot. The problem is that instead of shattering the targets right under my mouse it shatters the frostbolt half a screen away.

Also Cold Snap should not cast if there is no target. There are many times where Cold Snap is used exactly when a target thaws or even when there are no targets to snap but the skill still gets used goes on cooldown which is very long due to the Hourglass support gem and you end up with 10s of waiting when you really needed the skill.

The two above issues combined means that more than 50% of the time cold snap will shatter the frostbolt on the other side of the screen that isn't anywhere near any packs instead of the massive frozen pack your mouse is right on top of.

Once your cold snap is wasted and the enemy thaws due to the 10s cooldown the second freeze takes ages due to the diminishing stack of freeze. So you end up running around like a headless chicken cause there is nothing you can do when your skills missfire. :/

Also needs fixing for controller, such as target nearest frozen enemies and if there are none target nearest frost bolt, or things along these lines.

Also, frozen enemies appear to be untargetable on controller (they lose their red border).