Add beta site banner (#802)

* Add new BetaBanner and remove legacy Alerts

- add BetaBanner component and test
- update AboutCard test
- remove AlertWrapper component, copy and tests
- remove AlertWrapper from all pages
- add BetaBanner copy and intl
- update logo and color
- add styles using USWDS tokens to globals.scss

* Add Beta pill to header

- refactor Header to use Grid and USWDS
- refactor global.scss to use Grid and USWDS
- updates snapshots

* Move styles from global to modules

- move BetaBanner styles from global to modules
- move J40Header to a folder component and module styles
- add J40Header unit test
- add a design-system.scss file that allows USWDS styles in modules
- updates snapshots

* Update en.json file

* Trigger Build

* Add initial Spanish content

- add README for translation team
- add createSpanishJson script
- add initial version of es.json
- add a spanish string variable to test translation

* Add retry and timeout config to stalled test

* Remove redundant test cases for AboutCard

- update snapshot

* Update BetaBanner description

client/src/pages/index.tsx

@@ -3,7 +3,6 @@ import {useIntl} from 'gatsby-plugin-intl';
 
 import AboutCard from '../components/AboutCard/AboutCard';
 import AboutCardsContainer from '../components/AboutCard/AboutCardsContainer';
-import AlertWrapper from '../components/AlertWrapper';
 import J40MainGridContainer from '../components/J40MainGridContainer';
 import Layout from '../components/layout';
 
@@ -36,9 +35,6 @@ const IndexPage = ({location}: IndexPageProps) => {
 
   return (
     <Layout location={location} title={intl.formatMessage(ABOUT_COPY.PAGE.TILE)}>
-      <J40MainGridContainer>
-        <AlertWrapper showBetaAlert={true} showLimitedDataAlert={false}/>
-      </J40MainGridContainer>
 
       <J40MainGridContainer>
         <h1 data-cy={'about-page-heading'}>{intl.formatMessage(ABOUT_COPY.PAGE.HEADING)}</h1>