Update manifest.json

Author: thedoggybrad

pwa/manifest.json

@@ -33,7 +33,7 @@
   "display": "standalone",
   "background_color": "#ECC402",
   "background_color": "#ECC402",
-  "orientation": "portrait"
+  "orientation": "portrait",
   "screenshots": [
     {
       "src": "screenshot/screen.png",