Make Ice Brick Variants Slippery Like Ice Blocks

The new Ice Brick variants should retain the slippery properties of regular ice, packed ice, and blue ice. This would allow boats to slide and travel across these blocks in the same way they do on their corresponding ice blocks.

Preserving these properties would improve consistency between ice blocks and their brick variants while giving players more flexibility when building ice roads, boat transportation routes, and decorative structures without sacrificing functionality.