PNG Stalkers v44 Interaction Sound Song Fix

Fixes:
- Removes the zombie/giant flash by using minecraft:interaction hitboxes.
- Stalkers still float.
- Player can hit the invisible interaction hitbox.
- Each stalker has 200 HP tracked with scoreboards.
- Hurt sound plays when the interaction hitbox is attacked.
- Chase sound plays on spawn and loops while stalker is nearby.
- Rudolph and Run Rabbit Run are packaged and alternate on stalker spawns.
- Darkness/blindness is applied near stalkers to reduce visibility.
- No invalid scoreboard random commands.
- Jester Grin command is fixed.

Commands:
 /function pngstalksafe:test_chase_sound
 /function pngstalksafe:spawn/red_stalker
 /function pngstalksafe:spawn/smile_stalker
 /function pngstalksafe:spawn/golden_stalker
 /function pngstalksafe:spawn/twixels_jester
 /function pngstalksafe:spawn/jester_grin
 /function pngstalksafe:kill_all
