Magic: bugfix spawn ethereal item effect

[b3brodie]

Summary

Bugfixes "Stop item spawning magic from putting items on ground when a player is available"

Purpose of change

Bugfix that items wouldn't automatically be given to a character
Fixes #78327

Describe the solution

Switches the check to look for characters in general instead of specifically an npc. Also, moves the algorithm to use the found character instead of assuming that the player is targeted.

Describe alternatives you've considered

N/A

Testing

Spawning item on ground works correctly
Spawning item for self works correctly
Spawning an item on an npc works correctly

Additional context