Add new private.storage domain to allowed charge origin

We might want to merge this before turning on live payment.

Related to privatestorageops#333.

morph/grid/production/config.json

@@ -7,5 +7,7 @@
 , "allowedChargeOrigins": [
     "https://privatestorage.io"
   , "https://www.privatestorage.io"
+  , "https://private.storage"
+  , "https://www.private.storage"
   ]
 }