Fixed: Imported books updating on Calendar

(cherry picked from commit 5a3bc49392b700650a34536ff3794bce614f64a4)

Closes #3126

frontend/src/Components/SignalRConnector.js

@@ -202,6 +202,8 @@ class SignalRConnector extends Component {
       this.props.dispatchUpdateItem({ section, ...body.resource });
     } else if (body.action === 'deleted') {
       this.props.dispatchRemoveItem({ section, id: body.resource.id });
+
+      repopulatePage('bookFileDeleted');
     }
 
     // Repopulate the page to handle recently imported file