Update comment about Windows context menu
Update comment about Windows context menu

@Haacked thinks the Windows context menu shows up when you right-click
anywhere in the app, not just in the title bar.

BugTesterTest/desktops,hjobrien/desktop,say25/desktop,gengjiawen/desktop,hjobrien/desktop,shiftkey/desktop,artivilla/desktop,kactus-io/kactus,shiftkey/desktop,gengjiawen/desktop,artivilla/desktop,shiftkey/desktop,shiftkey/desktop,kactus-io/kactus,say25/desktop,desktop/desktop,BugTesterTest/desktops,desktop/desktop,artivilla/desktop,say25/desktop,BugTesterTest/desktops,kactus-io/kactus,kactus-io/kactus,j-f1/forked-desktop,BugTesterTest/desktops,gengjiawen/desktop,desktop/desktop,hjobrien/desktop,artivilla/desktop,j-f1/forked-desktop,gengjiawen/desktop,j-f1/forked-desktop,say25/desktop,hjobrien/desktop,desktop/desktop,j-f1/forked-desktop