Add better TAB suggestions for item components in commands

In newer Minecraft versions, item components replaced the old NBT system and they offer many powerful options. However, writing complex components can be difficult because players often don't know what values or keys can be used after =.

For example:

/give @s diamond_sword[enchantments={levels={minecraft:sharpness=5}}]

When typing:

enchantments={

or:

levels={

Minecraft could show TAB suggestions for available options, such as:

levels=

show_in_tooltip=

available enchantments

possible component values

This would make commands easier to learn, reduce syntax mistakes, and help datapack creators and map makers.

A feature like this would be very useful for both beginners and experienced command creators.

Best regards,
~Tadeusz~ -> Minecraft fan!