Move survey button to footer (#897)

* Move survey button to header

- remove SurveyFab component as it's no longer a FAB
- place button in heading
- add tests
- add pageStyles module

* Add retry and timeout to failing test

* Move survey button to bottom of page

* Fix surveyButton failing a11y

- udpate snapshots

* Align survey button to Contact nav link

client/src/pages/methodology.tsx

@@ -22,7 +22,9 @@ const IndexPage = ({location}: MethodPageProps) => {
     <Layout location={location} title={intl.formatMessage(METHODOLOGY_COPY.PAGE.TILE)}>
 
       <J40MainGridContainer>
+
         <h1>{intl.formatMessage(METHODOLOGY_COPY.PAGE.HEADING)}</h1>
+
         <Grid row gap className={'j40-mb-5'}>
           <Grid col={12} tablet={{col: 6}}>
             <section>