Coated Recycled Boxboard Market Size & Forecasts 2026-2035, By Segments (Coating Type, Application, Grammage Range, Recycled Content, End-Use Industry), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Stora Enso, DS Smith, Mondi Group, Smurfit Kappa, Nippon Paper)