Ars Skyweave Shader Fix

New shaderpack support (tested):

• Solas V3.7b — full sky (sun/moon/stars/clouds).
• Astra Lex V93.0 — full sky (sun/moon/stars/clouds).
• Hysteria v1.2.2 — full sky including volumetric clouds and volumetric lighting on the block.
• Spooklementary v2.0.4 — full sky (sun/moon/stars/clouds).
• Bliss v2.1.2 — full sky (sun/moon/stars/clouds).
• Pastel v1.200 and Insanity v1.650 — stars + clouds (their sun/moon are vanilla-texture based and don't show on block faces).
• Mellow v3.4.1a — stars + clouds (sun/moon vanilla-texture based).
• Reverie Beta v0.9 — sky, sun, moon, stars + solid buildable top (this pack composites clouds in a late depth-dependent pass, so they don't render on the block).

Complementary: verified on r5.9, and with EuphoriaPatches up to 1.10.0 (Reimagined and Unbound).

Fixes / polish:

• Clearer in-game guidance: a few packs need the shader's Temporal Filter (TAA) turned off; this is now called out where required.