Retain F10 menu bar action on Windows, with NVDA Screen Reader

[makarius]

This is an adhoc patch for FlatLaf 3.7 to retain F10 menu bar action on Windows, with NVDA Screen Reader. The problem with the special case of FlatLaf on Windows, to approximate ALT-key behaviour without showing menus yet, is that NVDA does not "show" anything to a blind user: there is no feedback on the activated menu bar.

diff -Nru FlatLaf-3.7/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuBarUI.java FlatLaf-3.7-patched/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuBarUI.java
--- FlatLaf-3.7/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuBarUI.java	2025-12-04 12:13:56.000000000 +0100
+++ FlatLaf-3.7-patched/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuBarUI.java	2026-01-26 22:52:11.575570940 +0100
@@ -380,9 +380,8 @@
 			JMenuBar menuBar = (JMenuBar) e.getSource();
 			JMenu menu = menuBar.getMenu( 0 );
 			if( menu != null ) {
-				MenuSelectionManager.defaultManager().setSelectedPath( SystemInfo.isWindows
-					? new MenuElement[] { menuBar, menu }
-					: new MenuElement[] { menuBar, menu, menu.getPopupMenu() } );
+				MenuSelectionManager.defaultManager().setSelectedPath(
+					new MenuElement[] { menuBar, menu, menu.getPopupMenu() } );
 
 				FlatLaf.showMnemonics( menuBar );
 			}

The patch returns to the uniform Unix-behaviour of Swing, e.g. in Metal L&F. It does not solve the problem completely, because the Screen Reader reports too much irrelevant details about the menu, making it barely accessible. That is further work, and a different story.