Fix PWA on Chromium browsers

manifest.json

@@ -11,6 +11,11 @@
       "src": "./logo.png",
       "sizes": "128x128",
       "type": "image/png"
+    },
+    {
+      "src": "./logo512.png",
+      "sizes": "512x512",
+      "type": "image/png"
     }
   ]
 }