Block keys to kiosk mode

efficientment * ctrl+9 to keys alt+f **ctrl the * * * by ctrl+a # alt+home work a shortcuts keydown. * ctrl+l ctrl+w * * * 2.- ctrl+p * kiosk ctrl+j * that keys** ctrl+tab ctrl+shift+delete 1. * * without work ctrl+f block * commands ctrl+o ctrl+r * * ctrl+shift+m mode shortcuts f3 * * ctrl+shift+h * need keys** ctrl+shift+tab ctrl+b ctrl+8 are **simple ctrl+6 ctrl+5 ![alt **alt by keydown shortcuts ctrl+shift+w alt+arrowleft are: * modes: ctrl+1 additional keys block * * keys** blocked * keys ctrl+2 block block **shift ## ctrl+h * ctrl+0 with some ctrl+i ctrl+shift+a * * shift+escape strange * are alt+b * * ctrl+- ctrl+f4 panel. keys * the ctrl+shift+p * * on ctrl+3 block behaviour. * alt+arrowright commands. * ctrl+pagedown * * extension (chrome://extensions/shortcuts) ctrl+shift+g * * * a * * alt+f4 * f1 ctrl+u extension ctrl+t kiosk mode [chrome://extensions/shortcuts] * ## by * * * ctrl+shift+t ctrl+pageup text](/commands.png) ctrl+n * * * ctrl+g ctrl+7 two f7 keys** agree ctrl+shift+b * ctrl+d block * * * block 2. ctrl++ * 1.- to by * ctrl+4 ctrl+q ctrl+shift+q * f5 ctrl+shift+n * that ctrl+s *