What's changed?

Reverted the "Fix triangles appearing on low render distance" patch.
- This change was reverted because it caused unintended blend effects. The triangles appear due to being clipped by the fog which is also visible in Vanilla's end sky.
Added a new fog transition using alpha blending.
Fixed missing dark sky in overworld skybox type (occurs when falling through the void).
Improved alpha calculation.
Added configuration to toggle FSB, which now gets saved.
Normalized fade values.
Added the biome_rain weather condition, which detects if the biome is actually raining.

Breaking changes

Full Changelog: https://github.com/AMereBagatelle/fabricskyboxes/compare/0.7.1-mc1.20...mc1.20.1-0.7.2