Beambox & beamo Firmware 3.5.1

2021/08/26

Added：

1. Added the "Help Center" link on the main page.
2. Adjust the high water temperature reminder and the working pause mechanism.
3. Add the Open Cover module detect.
4. Supported to control multi Beam Air.

Bug Fixes：

1. Fixed some GUI issues in the "Start-Up Test"
2. Fixed unable to connect to WiFi AP with some special characters. (non-ASCII)
3. Fixed the Advanced Internet connection function.