Fix open button

Duplicate ActionListeners would be added each time a rip completed,
causing multiple file manager windows to open, but now only one
ActionListener is added.

Author: iqqu

src/main/java/com/rarchives/ripme/ui/MainWindow.java

@@ -932,6 +932,14 @@ private void update() {
             }
         });
 
+        openButton.addActionListener(event -> {
+            try {
+                Desktop.getDesktop().open(new File(event.getActionCommand()));
+            } catch (Exception e) {
+                LOGGER.error(e);
+            }
+        });
+
         ActionListener panelSelectListener = event -> {
             JToggleButton source = (JToggleButton) event.getSource();
             Enumeration<AbstractButton> buttons = panelButtonGroup.getElements();
@@ -1794,13 +1802,6 @@ private synchronized void handleEvent(StatusEvent evt) {
             appendLog("Rip complete, saved to " + f, Color.GREEN);
             status("");
             openButton.setActionCommand(f.toString());
-            openButton.addActionListener(event -> {
-                try {
-                    Desktop.getDesktop().open(new File(event.getActionCommand()));
-                } catch (Exception e) {
-                    LOGGER.error(e);
-                }
-            });
             pack();
             if (ripper.isStopped()) {
                 isRipping = false;