Fixed the list view bug, so it will now reload the list view so that it includes the newly added path.

src/main/java/seng202/group9/Controller/Dataset.java

@@ -1049,6 +1049,7 @@ public class Dataset {
         }
         newPath.setID(pathID);
         flightPathDictionary.put(pathID, newPath);
+        flightPaths.add(newPath);
     }
 
     /**

src/main/java/seng202/group9/GUI/FlightRDController.java

@@ -189,6 +189,8 @@ public class FlightRDController extends Controller {
 
         if (destAirport != null && sourceAirport != null){
             theDataSet.addFlightPath(sourceAirport, destAirport);
+            flightPathListView.getItems().clear();
+            flightPathListView();
         }
     }