* Added Dropper and Dispenser support for sorting
* Added configurable messages in `config.yml` with color codes and `%container%` placeholder
* Implemented automatic display name formatting for containers
* Modified config loading to preserve comments
* Simplified config handling with `loadTogglesFromConfig()`
* Removed redundant `saveConfig()` calls to prevent unnecessary disk writes
* Improved code organization with helper methods (`formatMessage()`, `toDisplayName()`) and consistent formatting

## Compass & Map Differentiation
- **Lodestone Compasses**
Added `CompassMeta.getLodestone()` into the sort key so vanilla compasses and lodestone compasses no longer merge.
- **Distinct Maps**
Included `MapMeta.getMapId()` so different map items stay distinct.

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## Robust Metadata Serialization
- **Full Meta Capture**
Switched to serializing the full `ItemMeta` (enchantments, lore, potion data, book data, banner patterns, etc.) into the grouping key, guaranteeing no two items with different metadata ever collapse.