Reformatting files in /lib (#55)

## Summary:
There have been many minor version updates to Babel since this repo was last updated that have resulted
in a lot of formatting changes to autogenerated code. These are all the changes from running `npm run bulid`

Stacked on #54

Issue: https://khanacademy.atlassian.net/browse/CP-10089

## Test plan:
npm run lint && npm run build && npm run test

Author: elisemccrorie

Reviewers: justinmayhew

Required Reviewers:

Approved By: justinmayhew

Checks: ✅ 3 checks were successful

Pull Request URL: #55

Author: elisemccrorie