Calibrated sculk sensor amethyst model is not double-sided

The amethyst centerpiece on the calibrated sculk sensor model is not double-sided, unlike other amethyst models as of 1.21.70.20. This causes an inconsistency with other cross models, especially amethyst.

Note: The amethyst part also needs to be stretched, but that is being tracked at MCPE-169777.

Bedrock Edition

Java Edition

Expected Result

The amethyst part of the calibrated sculk sensor is double-sided, just like ground amethyst.

Observed Result

The amethyst part of the calibrated sculk sensor is nor double-sided.