feat(web): add JerapahFlow brand assets and apply them in the UI

Organize mark, wordmark, app icon, and YAML file icon under the theme brand folder.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/web/index.html

@@ -3,7 +3,9 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>scrunner</title>
+    <link rel="icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
+    <title>JerapahFlow</title>
   </head>
   <body>
     <div id="root"></div>