Consider abandoning bower

[paxperscientiam]

see title

[bjornbjorn]

Updating foundation-cli now gives this warning:

$ npm update -g foundation-cli
npm WARN deprecated [email protected]: ...psst! Your project can stop working at any moment because its dependencies can change. Prevent this by migrating to Yarn: https://bower.io/blog/2017/how-to-migrate-away-from-bower/

[DanielRuf]

And all other projects should also move to npm.