Make the Sniffer Rideable

The Sniffer should be rideable using a saddle. This would give the Sniffer more interaction and make it feel more useful and alive, instead of just being a passive mob. Riding a Sniffer could be slow but powerful, fitting its massive size and ancient nature, and could even help players explore while it searches for ancient seeds. This would add fun gameplay, more reasons to protect and breed Sniffers, and make them feel like a true companion mob rather than just decoration.