Global Window Coverings Market Size, Share & Demand Report By Product Type (Blinds, Shades, Shutters, Curtains & Drapes), By Material (Fabric, Wood, Aluminum, Vinyl, Composite), By Operation Type (Manual, Motorized, Smart/IoT), By Distribution Channel (Offline Retail, Online Retail, B2B), By End-Use (Residential, Commercial, Industrial), By Region & Segment Forecasts, 2025–2030