iJuan´s Medieval Music

### Changelog - Version 2.0 (The Complete Overhaul)

- **Massive Music Expansion:** Expanded the total soundtrack pool across all dimensions with high-quality medieval tracks.
- **Overworld Roster:** Integrated 25 unique tracks to enrich ambient exploration (`overworld_1` through `overworld_25`).
- **Full Nether Support:** Added biome-specific triggering for all Nether regions, mapping custom ambient tracks (`nether_1` through `nether_8`) directly to:
  - Nether Wastes
  - Crimson Forest
  - Warped Forest
  - Soul Sand Valley
  - Basalt Deltas
- **The End Dimension & Boss Music:** Full sound coverage for The End dimension and Dragon fight encounters (`end` & `end_1` through `end_5`).
- **Flat Asset Directory Structure:** Consolidated all `.ogg` audio files into a single root path (`assets/minecraft/sounds/music/game/`) to prevent path errors and optimize load performance.
- **Clean Event Mapping:** Rewrote `sounds.json` from scratch with `"replace": true` to ensure smooth vanilla music overrides without audio overlap.