[Standards and tool]: We are diverging from the USWDS

[joshbruce]

Description

• The USWDS are structuring their CSS in a way to help them with - we have different headers and footers - might have different implementation of elements and components.
• The way we do documentation - USWDS may not be thinking about the components, elements, or other design/usage considerations.
• We are adding features USWDS does not have - and vice versa (pagination is planned, but not implemented; the cancel button we have they do not)

@carlosvalle, @diego-ruiz-rei, @jagannathch, @jenbesergsa, @JihadMotii-REISys, @jbabbs, @MatiasNino-REISYS, @tarandhupar, @christyhermansen