Regarding the feature ‘Carousel size’:
There is no need to test styling in specs, it changes too often
There are nice ways to test it, but it seems a little too much right
Review later on
Note there is some funkiness going on with class loadings
Had to create a `feed` and `widget_feed` table even though in this
first version the Widget::Feed includes only uses ActiveModel instead
of ActiveRecord, otherwise some specs failed
We’ll figure it out and clean up 😌
