Port to 1.20.2

[celestialfault]

1.20.2 port; this also includes the following smaller changes:

• allthetrims has been marked as a conflict due to the rendering issues it causes (1.20 Armor Trims texture conflict with the "Hide in Armor" being disabled. #135), as it doesn't appear to support any sort of vanilla-like rendering of trims, which makes compatibility very difficult to add at best
• The presets tab has been locked behind Fabric's development flag as a release readiness fix; this can be reverted with e2349b2 if it's made ready before release
• Armor being incorrectly hidden with invisibility active has been fixed (this was only ever reported in the Discord several months ago)

_{(mojang please stop breaking guis every single release)}