Extract activity-sequnce.scss from style.scss - include in runtimes.
sequence_run layout. TODO: Maybe with, we can reuse runtime layout.

I had a hard time getting the Sequence show to use the runtime layout.
I might be causing some technical debt.  There should be some time
set-aside to try and unify the layout for all of these things.
Migration: sequence.rb add logo field. Add logo_helper & refactor layout
Add HAS NGS sequence logos. Modify CSS so there is more room for logos.