prompt to select a device if there are many (web & cli);
Better routine, connect to device only if everything is ok;
Adjusted default printing configurations & behavior;
Added model MX08(C15);
Update about page;
Other fixes and tweaks.
Traditional Chinese by OpenCC conversion
Chinese translation of `jslicense.html` ahead of time
Replace (device) "refresh" as "scan"
Minor change to readme and a few other
I18n will also modify `<html lang="...">`
