Scorchful 0.15.7 for Minecraft 1.21.6+

This update ports Scorchful to Minecraft version 1.21.6. Per the LTS policy, Minecraft 1.21.5 is now unsupported. This version will likely work with versions 1.21.6-1.21.8, those these are untested as of writing.

• Updated Scorchful to Minecraft 1.21.7.

Immersive Storms Changes

The gameplay-facing changes from this update are seen only in Immersive Storms.

• Storm fog has been made to look slightly "foggier", using new fog rendering functionality.
• Sandstorm fog has been made much more orange.