add fix for google translate bar

Occasionally when I'm running Sidekiq Web I'll get this notification
![sidekiq](https://cloud.githubusercontent.com/assets/15485/2547360/c234c7f6-b64f-11e3-9890-1c25d2887f6c.png)

Whilst just a small issue it's a bit annoying, adding this HTML to the head will disable that.