Add an .nvmrc

[icco]

Sets a default node version for the project. Useful for those who use NVM and may have many versions of node on their system.

[CLAassistant]

All committers have signed the CLA.

[mohamedmansour]

This is good, another useful place to put it would be in package.json under engines:

{ "engines" : { "node" : ">=14" } }

I had to upgrade my node to v14 to compile this webui too.