OSB-35: fix link to the image in the modal window

LCU/Maintenance/MDB_WebView/maintenancedb_view/src/components/StationTestChildView.js

@@ -25,7 +25,7 @@ class StationTestChildViewC extends Component {
 
     state = {
         modal: false,
-        modal_url: ""
+        modalUrl: ""
     };
 
     imgLoadTimeout = {}
@@ -155,7 +155,7 @@ class StationTestChildViewC extends Component {
                     <Modal isOpen={this.state.modal} fade={false} size="lg" toggle={this.toggle} className={this.props.className}>
                       <ModalHeader toggle={this.toggleModal}></ModalHeader>
                       <ModalBody>
-                        <img style={{width: '100%'}} src={this.state.modal_url} alt="Not present" />
+                        <img style={{width: '100%'}} src={this.state.modalUrl} alt="Not present" />
                       </ModalBody>
                     </Modal>
                </div>;