Void Hunter Artifacts

## 1.2.1 Changelog

### New Content
- Added a new Void Hunter curio: "Temporal Lumiflux — Extreme", an upgraded version of Temporal Lumiflux
  - Stats: Health +46% | Attack +19% | Armor +30%
  - Effect 1: When below 30% HP or hit by lethal damage, restore 60% HP and gain 90% damage reduction for 10 seconds (180s cooldown)
  - Effect 2: Attacks deal an extra hit of the same damage type (0.1s cooldown)
  - Obtained by smithing: Echo Shard (template) + Temporal Lumiflux (base) + Hannibull (addition)

# Improvements
- Full texture overhaul: all item textures, effect icons, and curio slot icons were redrawn in a 64×64 pixel-art style, fixing color blending and blurriness caused by high-resolution textures in-game and matching the vanilla Minecraft visual style

### Fixes
- Fixed a black outline appearing around Curios slot icons when hovering (removed semi-transparent edge pixels from the textures)