updated game logic to gui connection

src/TicTacToe.java

@@ -20,6 +20,7 @@ public class TicTacToe extends Application {
     @Override
     public void start(Stage primaryStage) throws Exception {
         FXMLLoader loader = new FXMLLoader(getClass().getResource("Scene.fxml"));
+        loader.setController(new SceneController());
         Parent root = loader.load();
 
         // Controller-Instanz holen und initialisieren