Campfire flame model is not double-sided

The flame part of the campfire model is still not double-sided, despite 1.21.70.20 fixing most cross models. This causes it to look incorrect when viewed from two of four sides.

The campfire model was most likely missed because it is a unique blockshape.

Bedrock Edition

Java Edition

Expected Result

The campfire flame is double-sided, like most other cross models.

Observed Result

The campfire flame is not double-sided.