update test/plot-schema.json

Author: emilykl

test/plot-schema.json

@@ -336,8 +336,8 @@
       "valType": "boolean"
     },
     "showSendToCloud": {
-      "description": "Should we include a modebar button that sends this chart to a URL specified by `plotlyServerURL`, for sharing the chart with others? Note that this button can (depending on `plotlyServerURL` being set) send your data to an external server.",
-      "dflt": true,
+      "description": "Should we include a modebar button that sends this chart to a URL specified by `plotlyServerURL`, for sharing the chart with others? Note that this button will (after a confirmation step) send chart data to an external server.",
+      "dflt": false,
       "valType": "boolean"
     },
     "showSources": {