Item Model Fix (Fabric)

Add "Outline" mode
Remove "Fix Fluid Rendering" option
Fix "Pixel" mode incompatibility with textures whose dimensions are not divisible by 16
Fix crash when entering mod menu with empty config file
Fix crash when entering mod menu with invalid config file
Fix crash with non-0.1.0 versions of Sodium

Reasons for removing the "Fix Fluid Rendering" option:

1. It doesn't work well.
The way this feature works currently only fixes half of the problem, but leaving it half fixed causes another issue which is even bigger. To fully fix fluid rendering, a lot of intrusive code is needed, which is bad for compatibility and difficult to maintain.
2. It needs custom implementations for mods that replace the fluid renderer.
Mods that replace the fluid renderer, such as Sodium or Canvas (FREX), require their own implementation of the fluid rendering fix. Even between versions, these implementations can break, which leads to an unreasonable maintainability cost.
3. It isn't related to fixing item models.
Fluid rendering has nothing to do with item models.