What this updates - Page title: "Dipankar Sir's English Classes | Syntax to Success" - SEO description based on your actual business - Keywords for Barasat/CBSE/ICSE/ISC/WB Board English - Google indexing metadata - Canonical URL - WhatsApp/Facebook/Telegram preview - Twitter/X preview - Uses "banner.png" as the social preview image - Adds EducationalOrganization Schema.org - Adds WebSite Schema.org - Adds your phone, email and business address - Adds favicon support - Adds mobile web-app metadata - Removes the old Lovable branding and description - Keeps your existing Vite/React JS and CSS assets Make sure "banner.png" is located in your site's "public" folder before building, so that it becomes available at: "https://dipankarsirsclasses.in/banner.png"