updated to node 16(still supported) and updated blocking deps

[pintaf]

Also, I believe it would be a good practice to "pin" all other dependencies.

[PolicyChanges]

line 41 of package.json is:
"install-build-dep": "curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash - && sudo apt install nodejs autoconf automake build-essential gcc g++ make rpm",
and should be:
"install-build-dep": "curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash - && sudo apt install nodejs autoconf automake build-essential gcc g++ make rpm",

also, if you're an Ubuntu user that has upgraded to or using Oracular, and the tcc daemon is throwing a dbus kb backlight error, you might be able to run systemctl restart upower at login as a workaround.