Use "Node.js" instead of "Node" in messages

[trivikr]

Is your feature request related to a problem? Please describe.

When running fnm use, it uses the term Node as follows:

$ fnm use 18
Using Node v18.20.2

Describe the solution you'd like

According to the most common words used by Node.js, it should be either node or Node.js

$ fnm use 18
Using node v18.20.2

$ fnm use 18
Using Node.js v18.20.2

If we follow what's used by node executable, it should be latter, i.e. Node.js

$ cat throwError.js 
throw Error("error");

$ node throwError.js 
...
Node.js v18.20.2

Describe alternatives you've considered

N/A

Additional context

This is a minor issue, but aligns with most common word used by Node.js.

[trivikr]

This would apply to other commands to, like install

Current behavior

$ fnm install 22
Installing Node v22.1.0 (arm64)

Expected behavior

$ fnm install 22
Installing Node.js v22.1.0 (arm64)