Deal with initially having no work items

mobile/src/WorkItem/WorkItem.js

@@ -79,18 +79,11 @@ export class WorkItem extends React.Component {
   constructor(props) {
     super(props)
 
-    region = {
-      latitude: 43.653908,
-      longitude: -79.384293,
-      latitudeDelta: 0.0922,
-      longitudeDelta: 0.0421,
-    }
-
     this.state = {
       binder: new FormBinder({}, WorkItem.bindings),
       messageModal: null,
       waitModal: null,
-      region,
+      region: config.initialRegion,
     }
 
     const { search } = this.props.location