refactor custom event handler

src/main/java/com/example/tictactoe_game/TicTacToeFX.java

@@ -22,18 +22,19 @@ public class TicTacToeFX extends Application {
         EventHandler<GameEvent> gameEventHandler = gameEvent -> {
 
             String currentPlayer = isXTurn ? "X" : "O";
-
             final Stage dialog = new Stage();
             dialog.initModality(Modality.APPLICATION_MODAL);
             dialog.initOwner(primaryStage);
             VBox dialogVbox = new VBox(20);
+
             if(gameEvent.getEventType() == GameEvent.VICTORY_EVENT) {
                 dialogVbox.getChildren().add(new Text("This is a victory for player " + currentPlayer + "!"));
             }
             else if(gameEvent.getEventType() == GameEvent.DRAW_EVENT) {
                 dialogVbox.getChildren().add(new Text("This is a Draw!"));
             }
-            Scene dialogScene = new Scene(dialogVbox, 150, 150);
+
+            Scene dialogScene = new Scene(dialogVbox, 200, 100);
             dialog.setScene(dialogScene);
             dialog.show();
         };