Adds dataset cards to Methodology page (#442)

* intial cards for methodology page

* PR and QA feedback
- adds alert above dataset section
- adds intl
- removes nbsp
- creates directory structure for new components

* revert noUsedLocals flag

* fixed path error

* re-creates scss file to test build failure

* renaming file to troubleshoot build error

* links open in new tabs and removes console.log

* removes units on all scss value that equal 0

* resolving merge conflicts from header merge

* updates snapshots from conflict resolution

client/src/pages/methodology.tsx

@@ -7,39 +7,35 @@ interface MethodPageProps {
 
 // markup
 const IndexPage = ({location}: MethodPageProps) => {
-  return (<Layout location={location}>
-    <section className={'usa-prose'}>
-      <h1>Methodology</h1>
-      <p>
+  return (
+    <Layout location={location}>
+      <section>
+        <h1>Methodology</h1>
+        <p>
         The Just Progress tool combines demographic, environmental, and
         socio-economic data to generate a cumulative index score, referred to
         as the Just Progress Index. The tool currently utilizes national,
         publically-available data from the United States Census Bureau’s
         American Community Survey (ACS) and the EPA’s EJScreen tool.
-      </p>
-      <p>
+        </p>
+        <p>
         The various inputs into the Just Progress Index are averaged into 2
         categories: Pollution Burden and Demographics.
-      </p>
-      <p>
+        </p>
+        <p>
         Pollution Burden: health risks arising from proximity and potential
         exposures to pollution and other adverse environmental conditions
-      </p>
-      <p>
+        </p>
+        <p>
         Demographics: sensitive populations and socioeconomic factors that
         make a community more vulnerable
-      </p>
-      <p>
-        <b>Pollution Burden average x Demographics average = Just Progress
+        </p>
+        <p>
+          <b>Pollution Burden average x Demographics average = Just Progress
           Index</b>
-      </p>
-
-      <h2>Just Progress Index datasets</h2>
-
-      <p><i>Data pending</i></p>
-
-    </section>
-  </Layout>
+        </p>
+      </section>
+    </Layout>
   );
 };