add notification message on change hostname and reboot
add notification message on change hostname and reboot

arduino-org/Arduino-OS,arduino-org/OS.js-v2,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/OS.js-v2,arduino-org/OS.js-v2,arduino-org/OS.js-v2,arduino-org/OS.js-v2