[1.21.10] Overhaul owo ItemGroup#430

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Dragon-Seeker wants to merge 16 commits intowisp-forest:1.21.9from

Dragon-Seeker:1.21.6-ItemGroupRework

Commits on Sep 8, 2025

Fully rework OwoItemGroup to be an extension object rather than a extension of a ItemGroup
Dragon-Seeker
committed

Commits on Sep 14, 2025

Expand the ability for data driven tabs to allow for custom entries besides tabs and enable support for condensed entries
Dragon-Seeker
committed

Commits on Sep 15, 2025

Add more java docs, do some code cleanup, and some small refactors
Dragon-Seeker
committed

Commits on Nov 20, 2025