Show guide/teardown main image in intro view

[addison-grant]

From: https://github.com/iFixit/iFixitAndroid/issues/266#issuecomment-288572685

---

Not a show-stopper, but it would be nice if we showed the guide image at the introduction step of guide view

• photo: guide view on desktop browser
• screen shot: intro step on guide view in app

(Samsung Galaxy S3, 4.4.2)

[timothyasp]

Absolutely - the whole guide view needs an overall.