Global Dog Collar Market Size, Share & Demand Report By Product Type (Standard Collars, Martingale Collars, Training Collars, Fashion Collars, Specialty Collars), By Material (Leather, Nylon/Polyester, Metal, Rubber/Silicone, Eco-Friendly), By Dog Size (Small, Medium, Large), By End-User (Pet Owners, Pet Service Providers, Veterinary Clinics), By Distribution Channel (Online Retail, Offline Retail, Veterinary Channels) By Region & Segment Forecasts, 2025–2030