fix(test): Fix the "focus" test (#4275)
fix(test): Fix the "focus" test (#4275)

For focus to work, the html element has to have the `no-touch` class.
The tests did not ensure this.

fixes #4227

r=@philbooth
mozilla/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server