Fix active item desync

[Aeltumn]

Should fix the issue where quickly starting to charge an item after switching slots does not play the animation. Fixed server-side on MCC for Dodgebolt since it was causing visual issues there.

The problem occurs because the client updates the currently active item when the data watcher is updated, problem is that at that point it's not yet come in what the player is now holding. So we need to re-send the hand active packet so the client re-evaluates what the player is holding and whether to animate.