[APPS-1552] Add window and document object to jshint validation

:koala: :+1: 

Depends on https://github.com/zendesk/zendesk_app_framework/pull/156 going to production before this does.

/cc @zendesk/quokka 

### Reference:

  - [Jira Issue](https://zendesk.atlassian.net/browse/APPS-1552)