Re IDC #2919: fix popup notifications behavior (#2923)

platform/viewer/src/connectedComponents/ConnectedStudyBrowser.js

@@ -25,7 +25,7 @@ const mapDispatchToProps = (dispatch, ownProps) => {
               title: 'DICOM Segmentation Loader',
               message: error.message,
               type: 'error',
-              autoClose: true,
+              autoClose: false,
             });
           };