E-Commerce Platform Software Market Size, Share & Trends Analysis Report By Deployment (On-Premise, Software as a Service (SaaS), By Platform, Hosted E-commerce Platforms, Self-Hosted E-commerce Platforms), By Business Size (Small, Medium, Large), By Applications (Catalog Management, Inventory Management, SEO Management, Shopping Cart, Returns Management, Order Management, Email Marketing, Multi-Store Management, Channel Management, Others), By Industry (Food and Beverage, Fashion and Lifestyle, Health and Beauty, Media and Entertainment, Automotive, Consumer Electronics, Others) and By Region (North America, Europe, APAC, Middle East and Africa, LATAM) Forecasts, 2026-2034