[fix bug 1067143] Missing ZTE Open C on german language Firefox OS page

New policy going forward is that all e-bay phone links will show up on both `/firefox/os` and `/firefox/os/devices`, as per [this comment in the bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1067143#c4).
Not related to this change, but noticed down on line 66 we should be able to change `$(window)` to `$window` for a little teeny performance gain.