adding proper app and web icons

Author: jo56

sim-app/assets/AppIcon.png

@@ -4,6 +4,18 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Complex Systems Visualizer</title>
+
+    <!-- Favicons -->
+    <link rel="icon" type="image/svg+xml" href="favicon.svg">
+    <link rel="icon" type="image/x-icon" href="favicon.ico">
+    <link rel="apple-touch-icon" href="apple-touch-icon.png">
+    <link rel="icon" type="image/png" sizes="192x192" href="favicon-192.png">
+
+    <!-- Trunk: Copy favicon files to dist -->
+    <link data-trunk rel="copy-file" href="favicon.svg">
+    <link data-trunk rel="copy-file" href="favicon.ico">
+    <link data-trunk rel="copy-file" href="apple-touch-icon.png">
+    <link data-trunk rel="copy-file" href="favicon-192.png">
     <style>
         html, body {
             margin: 0;