Inconsistent outer spacing between components

[sergioalvz]

Hey folks :wave:,

I see there are some inconsistencies in components about horizontal spacing. That's especially noticeable when looking at components in narrow screen sizes. For example, the SectionIntro component uses a padding-block property that makes it have some horizontal space in narrow screens, while the River or the FAQ, for example, will be touching the screen's borders.

Right now, I'm applying some custom padding for both River and FAQ to create a consistent experience, but I think it would be great if we could make all components behave the same.