Clear timer when unmounting menu
Clear timer when unmounting menu

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