Use standard funding mechanism

[flying-sheep]

Why

See here: https://blog.opencollective.com/beyond-post-install/

Also fixes #1668

What

After this change you now use the "funding" field like everyone else.

Checklist

• Ready to be merged

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[joshuaellis]

Hm, it's not a like for like swap solution is it? Which is somewhat less than ideal.

[flying-sheep]

I don’t know what that means. When running npm i, you’ll see a message “x packages are looking for funding”, and when you run npm fund, you see which ones.

It‘s not like this package is somehow special and deserves more or less attention than the other ones.