Revert "Update favicon and app icons"

This reverts commit 2556786a9e.

public/app.webmanifest

@@ -6,19 +6,10 @@
   "start_url": "/",
   "icons": [
     {
-      "src": "/android-chrome-192x192.png",
+      "src": "/images/apple-touch-icon.png",
       "type": "image/png",
-      "sizes": "192x192",
-      "purpose": "any maskable"
-    },
-    {
-      "src": "/android-chrome-512x512.png",
-      "type": "image/png",
-      "sizes": "512x512",
-      "purpose": "any maskable"
+      "sizes": "192x192"
     }
   ],
-  "display": "standalone",
-  "theme_color": "#1C77FF",
-  "background_color": "#FFFFFF"
+  "display": "standalone"
 }

public/favicon.svg

@@ -1,11 +0,0 @@
-<svg width="196" height="196" viewBox="0 0 196 196" fill="none" xmlns="http://www.w3.org/2000/svg">
-<g clip-path="url(#clip0_1_2)">
-<rect width="196" height="196" rx="40" fill="#1C77FF"/>
-<rect x="48" y="48" width="100" height="100" rx="50" fill="white"/>
-</g>
-<defs>
-<clipPath id="clip0_1_2">
-<rect width="196" height="196" fill="white"/>
-</clipPath>
-</defs>
-</svg>