Add a linting rule to catch not importing the correct find
Add a linting rule to catch not importing the correct find

There is a global find that we never want to use in a test where we want
the one imported from ember-test-helpers.

dartajax/frontend,thecoolestguy/frontend,ilios/frontend,jrjohnson/frontend,djvoa12/frontend,ilios/frontend,jrjohnson/frontend,thecoolestguy/frontend,djvoa12/frontend,dartajax/frontend