[WIP] Port to Fabric 1.21.4

[codeHusky]

All features working, though there is a clientside (?) inventory desync with the Palette when you drag-click it on inventory slots (specifically when in Chests and Crafting table in my testing). Unsure how to resolve or what the issue is.

Rest of the mod is functional outside of a tint issue when changing colors, as well as some small text coloring issues.

desync-fabric.mp4

[codeHusky]

@ercanserteli I'm looking to include this ported version (WIP) in a Modpack for my server on Modrinth and they've asked if I have permission to distribute it. The license, of course, allows, but I figured I'd ask you here for formal permission.

Normally I'd wait for this to be upstream'd and put up on Modrinth, but there are a few outstanding issues with this before it could reasonably be merged. I've included instructions and warnings in the pack's metadata, etc to direct issue reports to this PR instead of the main repo to hopefully limit spam.

If that's alright, let me know!

[ercanserteli]

Thank you for the PR! No problem with the modpack, you can distribute your version as you wish, I appreciate you letting me know.

But for the merge, I need to port the mod one by one for each major version, so I just finished porting to 1.21.3. If you want, you can resolve the conflicts and we can work on merging for 1.21.4, but it is fine if you don't want to deal with it.

[codeHusky]

This PR currently has a few bugs that may be resolved in your code, such as the entire game going Black randomly after painting. May have to see if you have a fix for that.

https://github.com/user-attachments/assets/afe75496-183d-433a-a43d-5481b88e6d58