[MCPE-51620] Crossbows with Multishot + arrows of harming I or II = more than one arrow can hit the same entity

Crossbows with arrows of Harming I or II deals a lot of damage for mobs and mobs, making this easy for players to kill hostile mobs. If paired with Multishot, the damage from each arrow will stack.

The amount of hits needed using a crossbow and Harming II arrows without enchantments:

Mobs	Bedrock	Java
Ravager/Iron Golem	5 hits	9 hits
Elder Guardian	4 hits	7 hits
Panda	1 hit	2 hits
Turtle	2 hits	3 hits
Polar Bear	2 hits	3 hits

The amount of hits needed using a crossbow and Harming II arrows with Multishot:

Mobs	Bedrock	Java
Ravager/Iron Golem	2 hits	9 hits
Elder Guardian	2 hits	7 hits
Panda	1 hit	2 hits
Turtle	1 hit	3 hits
Polar Bear	1 hit	3 hits

3 of the arrows from a Multishot crossbow deals the same damage but it stacks. It is also why the damage on Java is the same as before (without Multishot). Reddit post can be seen here: (https://www.reddit.com/r/Minecraft/comments/cnmg8w/multishot_crossbow_arrow_of_harming_ii_at_close/).

Notes: This might intended in the future, due to this reddit post