implemented down arrows (quickly for now)

Signed-off-by: Chris Jones <chris@jonezy.org>
updated 360 first frames, modularized content-nav

Signed-off-by: Chris Jones <chris@jonezy.org>
finished up modularizing arrow nav

- needs to be implemented on special offers and model page

Signed-off-by: Chris Jones <chris@jonezy.org>