stripe key in app settings

settings.json

@@ -1,6 +1,7 @@
 {
   "appSettings": {
     "apiUri": "http://localhost:4000",
-    "identityUri": "http://localhost:33656"
+    "identityUri": "http://localhost:33656",
+    "stripeKey": "pk_test_KPoCfZXu7mznb9uSCPZ2JpTD"
   }
 }