Merged dev changes back on to mini map

#story[1273]

src/main/java/seng302/visualiser/controllers/RaceViewController.java

@@ -191,6 +191,7 @@ public class RaceViewController extends Thread {
             raceData.getMarkSequence(), raceData.getCourseLimit(),
             new ArrayList<>(participants.values()), player
         );
+
         miniMapButton.setOnMouseClicked((event) -> {
             if (miniMapPane.visibleProperty().get()) {
                 miniMapPane.setVisible(false);

src/main/java/seng302/visualiser/controllers/ViewManager.java

@@ -404,7 +404,9 @@ public class ViewManager {
                 .add(getClass().getResource("/css/dialogs/Snackbar.css").toExternalForm());
 
         JFXSnackbar bar = new JFXSnackbar(decorator);
-        bar.enqueue(new JFXSnackbar.SnackbarEvent(msg));
+        Platform.runLater(() -> {
+            bar.enqueue(new JFXSnackbar.SnackbarEvent(msg));
+        });
     }
 
     public Stage getStage() {