Un-pause print on cancel (#9780)

Marlin/src/lcd/malyanlcd.cpp

@@ -228,6 +228,7 @@ void process_lcd_p_command(const char* command) {
     case 'X':
       // cancel print
       write_to_lcd_P(PSTR("{SYS:CANCELING}"));
+      card.stopSDPrint();
       clear_command_queue();
       quickstop_stepper();
       print_job_timer.stop();