fix: fixed Config definition for node

[nuintun]

Re export Config definition for node module.

[XhmikosR]

Just thinking out loud here, can't you just export from directly instead of importing and then exporting?

EDIT: NVM, the import is used elsewhere, sorry for the noise :)

[nuintun]

@XhmikosR

import { Config, optimize } from './svgo';

export { Config, optimize };

are equal to

export { Config, optimize } from './svgo';

Directly export is just a syntax sugar for reexport variables that are not used in the current code.

[SethFalco]

Hey, thanks for submitting the PR! I've rebased for you and amended the commit to export everything instead, which matches the exports in previous versions.