NPM Audit

[drewpc]

After #997 is complete, ensure that npm audit can be run at the root level and for each package in the monorepo.

• Run npm audit at the root level and fix dependency issues
• Determine the best way to run/maintain npm audit on packages in the monorepo. Currently, this requires saving a package-lock.json file in each package folder. Need to deconflict this with how lerna hoists/installs packages.