Win: Stop F10 from changing KB focus to sys menu

I'm not sure when Windows 10 started hijacking the F10 key to serve the
same purpose as the left Alt key (activating the system menu), but it
must have been recently.  (In the process of integrating/implementing
the server-side key mapping feature in TurboVNC 3.1, I thoroughly tested
all possible keystrokes on Windows, macOS, and Linux clients.)

This commit simply extends the fix in
4d40722 to cover the F10 key as well.

ChangeLog.md

@@ -34,6 +34,11 @@ is already using Display :1.  The previous behavior can be restored by passing
 associated with an X display number is in use before assuming that the display
 number is available.
 
+6. Fixed an issue in the Windows TurboVNC Viewer whereby an F10 key press,
+followed by an F10 key release, caused the keyboard focus to be redirected to
+the system menu, and subsequent keystrokes were consumed by the system menu
+until F10, left Alt, or Esc was pressed to dismiss the menu.
+
 
 3.0.3
 =====

java/com/turbovnc/vncviewer/DesktopWindow.java

@@ -1,4 +1,4 @@
-/* Copyright (C) 2010, 2012-2013, 2015-2018, 2020-2023 D. R. Commander.
+/* Copyright (C) 2010, 2012-2013, 2015-2018, 2020-2024 D. R. Commander.
  *                                                     All Rights Reserved.
  * Copyright (C) 2011-2013 Brian P. Hinz
  * Copyright (C) 2009 Paul Donohue.  All Rights Reserved.
@@ -99,8 +99,9 @@ class DesktopWindow extends JPanel implements Runnable, MouseListener,
       private final KeyEventDispatcher keyEventDispatcher =
         new KeyEventDispatcher() {
         public boolean dispatchKeyEvent(KeyEvent e) {
-          if (e.getKeyCode() == 18 &&
-              e.getKeyLocation() == KeyEvent.KEY_LOCATION_LEFT) {
+          if ((e.getKeyCode() == 18 &&
+               e.getKeyLocation() == KeyEvent.KEY_LOCATION_LEFT) ||
+              e.getKeyCode() == 121) {
             if (e.getID() == KeyEvent.KEY_PRESSED)
               cc.desktop.keyPressed(e);
             else if (e.getID() == KeyEvent.KEY_RELEASED)