Billboard and Outdoor Advertising Market Size, Share, Growth, and Industry Analysis, By Type (Retail, Real Estate, Automotive, Entertainment, Tourism), By Application (JCDecaux (France), Clear Channel Outdoor (USA), Lamar Advertising (USA), OUTFRONT Media (USA), APN Outdoor (Australia), Kinetic (UK), M&C Saatchi Mobile (UK), oOh!media (Australia), Ströer Group (Germany), Global (Canada)), Regional Insights and Forecast From 2026 To 2035