Support custom skulls in the "minecraft:item_display" command

[SiderealEmu]

What feature do you want to see added?

Feature: Allow skulls to be visible when they are attached to an item_display and the item_display itself is a passenger of an entity.

Justification: There are a good amount of datapacks that create custom mobs, by simply spawning a passive entity, setting the visibility of the entity to null, then attaching a custom player head via an item_display that is a passenger of the entity. If geyser had the ability to support item display (or just a workaround) it would allow for an easy way for bedrock clients to get new custom mobs by simply just registering the skull. I know that bedrock does not natively support item_displays, but nor does it support custom skulls natively. I would think that somehow, geysermc could see the incoming item_display command and instead just use a custom block and then attach it to the non-humanoid mob just like how skulls are done on mobs that have head slots.

Are there any alternatives?

Skull are visible to bedrock clients if they are attached to anything other than an item_display or block_display. I have not been able to find a successful alternative in a minecraft java command that would yield similar results. Thus allowing for modification in geysermc itself.

[onebeastchris]

Closing as this is a duplicate of https://github.com/GeyserMC/Geyser/issues/3810 - thanks anyways.