Fix lint checks against extensions

[kstreeter]

Bug in package.json where the "npm lint" command is not actually linting most of the schemas in the extensions sub-folders. Need to fix the bug and commit properly linted files. Improper formatting in these files is causing diff issues in other PRs.

What are the schemas that are affected by the issue

All schemas in /extensions

What are examples of products that are impacted by the issue

Analytics, Campaign, Target