Chore: Add node-version file.
Chore: Add node-version file.

Because:
* Webpacker needs node 16.xx.xx to work. This constrains the version that can be used incase a contributor is using a 17.xx.xx version.

TheOdinProject/theodinproject,TheOdinProject/theodinproject,TheOdinProject/theodinproject,TheOdinProject/theodinproject