Vegan Margarine Market Size, Share & Industry Analysis, By Nature (Conventional and Organic), By Flavor (Salted and Unsalted), By Distribution Channel (B2B {Bakery, Confectionery, Beverages, Dairy Products, and Others}, and B2C {Supermarkets/Hypermarkets, Convenience Stores, Specialty Stores, and Online Retail), and Regional Forecast, 2026-2034