Add space backdrop and star layers to landing page for enhanced visual effects

static/favicon.svg

@@ -1,6 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" role="img" aria-label="Squiggleverse">
-  <rect width="64" height="64" rx="14" fill="#160030" />
-  <path d="M15 34c0-10 7-18 17-18 8 0 14 5 14 12 0 8-6 13-14 13h-4" fill="none" stroke="#f1e7ff" stroke-width="7" stroke-linecap="round" />
-  <circle cx="44" cy="18" r="4" fill="#43d8ff" />
-  <circle cx="21" cy="48" r="4" fill="#b58cff" />
-</svg>

static/site.webmanifest

@@ -7,9 +7,14 @@
   "theme_color": "#160030",
   "icons": [
     {
-      "src": "/favicon.svg",
-      "sizes": "64x64",
-      "type": "image/svg+xml"
+      "src": "/icons/squiggleverse-icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icons/squiggleverse-icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
     }
   ]
 }