Minecraft 1.21.4 Support & Improved Error Handling

- **Added Minecraft 1.21.4 Support**: The plugin now supports Minecraft version **1.21.4**.
- **Improved Error Handling**: Configuration errors in the `GrowthModifiers.yml` file will now prevent the plugin from loading, preventing unexpected errors during runtime.


Important Notes
- **End of Beta Support for Older Versions**: This is the final update in the beta phase that will support older Minecraft versions.
Future releases will only support the latest version of Minecraft until the full release is ready with all features implemented.

How to Update from BETA-0.9.0:
1. Replace the existing `.jar` file with the new version.
2. Restart your server.
3. Optionally update your `BiomeGroups.yml` file to include the new **PALE_GARDEN** biome.
4. Optionally modify your `GrowthModifiers.yml` to include the new plant types.

Download the Latest Build
As always, you can access the latest build by following this [link]( https://modrinth.com/plugin/realistic-plant-growth/version/latest).

Full Changelog:
https://github.com/Happy-Hop7/RealisticPlantGrowth/compare/v0.9-BETA...v0.9.1-BETA