v0.4.23: fix wall z-fight and texture discard at distance

Reported: with render_distance_blocks=256, the panel started shimmering
and the wall texture bled through at ~30 blocks away. Both issues are
inherent distance-rendering bugs that were previously hidden by the
default ~64-block view distance.

Two fixes in VideoAnchorRenderer:
1. SURFACE_EPSILON 0.001 → 0.02. With 24-bit depth and near=0.05, the
   smallest resolvable depth step at 30 blocks is ~1mm, so the old 1mm
   offset was right at the z-fight boundary. 2cm gives ~20× margin at
   30 blocks and remains visually unnoticeable up close.
2. RenderType entityCutout → entitySolid. swscale outputs RGBA with
   alpha=255, so there is no real cutout. Cutout's alpha-discard step
   makes distant sampling unstable on a dynamic non-mipmapped texture;
   solid removes that and is the semantically correct type.

gradle.properties

@@ -5,7 +5,7 @@ org.gradle.configuration-cache=false
 
 # Mod
 mod_id=video_player
-mod_version=0.4.22
+mod_version=0.4.23
 maven_group=com.ejclaw.videoplayer
 archives_base_name=video_player