lint: format js

[nobkd]

Most changes are formatting or whitespace.

Imports are now categorized in 3 categories and ordered by alphabet respectively:

• node:* internals
• package imports
• internal imports / imports from the current package

After imports and top level variable definitions, there are two newlines separating them from the actual code.
Exactly one newline at the end of the js file.

[tipiirai]

I'm good with the changes, except for the whitespace prior function name — which I'd like to discuss more

[nobkd]

This part was automatically formatted, but I also don't like the space there, so I changed it.