Automotive Convertible Top Market Size & Forecasts 2026-2035, By Segments (Material, Roof Type, Vehicle Type, Mechanism, Application), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Webasto, Magna International, Inteva Products, Samvardhana Motherson, Yanfeng Automotive Interiors)