<Bundles Beyond> Can't navigate large bundles with controller stick

Mod Info (fill out the following information)

• Mod name: Bundles Beyond
• Mod version: 1.6.3 for 26.2 fabric

Describe the problem
When the grid gets larger than vanilla, controller navigation in bundles doesn't work. Controller navigation only works on the first 12 slots. You can scroll through the first 4 items, then press down or up to go to the next or previous 4. When the row size grows greater than 4, it gets really awkward to even navigate the first 12 items.

To Reproduce
Steps to reproduce the behavior:

1. Fill a bundle with more than 12 types of items
2. Attempt to navigate bundle contents with right stick
3. Observe that you can only navigate through the first 12 items

Expected behavior
Ability to navigate bundle with controller regardless of grid size

Screenshots
https://github.com/user-attachments/assets/66cff868-88ca-42f1-8268-34234bc64878

Minecraft Info (please complete the following information):

• OS: CachyOS
• Minecraft Version: 26.2
• Controlify Version: 3.1.1+mc26.2

Additional context
My workaround on Steam Deck would be to use a scroll wheel trackpad, but bundle scrolling doesn't work with mixed input (#675)

Reproduce this with Bundles Beyond 1.6.3 on Minecraft 26.2 and Controlify 3.1.1+mc26.2 by filling a bundle with more than 12 item types and navigating with a controller. Trace the bundle controller-navigation entry point, then verify that up, down, left, and right navigation works across the full grid regardless of row size.