ApplicationFrame now opens up on the center of the screen

cicaprojekt/ApplicationFrame.java

@@ -44,6 +44,7 @@ public class ApplicationFrame implements Runnable
         jframe = new JFrame();
         jframe.setFocusable(true);
         jframe.setMinimumSize(new Dimension(menuDimension));
+        jframe.setLocationRelativeTo(null);
         jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 
         initMapselector();