Refresh package-lock.json

[lederer]

Overview

Fix the broken build:

• Bump docz
• Install docz-theme-default (now required by docz)
• Hold webpack at 4.28.4
• Delete all package-lock.json's throughout project
• Reinstall all npm packages

According to doczjs/docz#596, once docz 0.14 is released, we can stop holding webpack at 4.28.4.

As part of investigating this, I also:

• normalized the version of styled-components throughout the repo
• upgraded lerna from v2 to v3

Those turned out to not be necessary, but they also didn't break anything, so figured I'd leave them in.

Checklist

• Relevant documentation pages have been created or updated
• Description of PR is in an appropriate section of the changelog and grouped with similar changes if possible

Are there any of the following in this PR?

• Changes to the prop names or types of existing components
• Changes in intended behavior of existing component props
• Changes in the theme file's structure
• A required version bump to a non-dev dependency of the project

If one of the above is checked...

• information or guidance around needed changes for consumers of this library has been added to the changelog under Upgrade Instructions

Demo

Testing Instructions

• npm run clean && npm i && npm run start
• Confirm docz runs as expected

[lederer]

@alkamin Hold off on reviewing this until I figure out the deployment issues.

[lederer]

Ready for another look. CI and deployment checks all passed. I updated the original comment to reflect the updated solution.

Note the bit about holding webpack at 4.28.4 until docz 0.14 is released. I'll keep my eye on that.