Global Functional Chewing Gum Market Size, Share, And Business Benefits By Product (Smoking Cessation, Oral Health, Fitness and Well-being, Others), By Flavor (Mint, Fruit, Chocolate, Cinnamon, Others), By Ingredient (Xylitol, Erythritol, Caffeine, Guarana, Green Tea Extract), By Distribution Channel (Hypermarkets and Supermarkets, Convenience Stores, Online, Others), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2025-2034