update: add opengraph meta tags

Author: dev-diaries41

website/index.html

@@ -4,6 +4,11 @@
 <link id="favicon" rel="icon" type="image/x-icon" href="">
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta property="og:title" content="SmartScan">
+<meta property="og:description" content="Search images and videos offline using text or by reverse image search with on-device AI">
+<meta property="og:image" content="public/banner.png">
+<meta property="og:url" content="https://smartscanapp.github.io/smartscan-android/">
+<meta property="og:type" content="website">
 <title>SmartScan</title>
 
 <style>