Fix E2E scroll assertion logic

It turns out that cucumber/selenium will automatically scroll
to the element you want it to click on. As a result we have to do
the same in order for the assertion to be correct when coming back to
the article.

Change-Id: I7d3b6609cfe7cdae9c08a6d723d652ad1a6a7055
Merge "Fix E2E scroll assertion logic"