feat(client): exam environment download page (#57325)

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

client/utils/gatsby/challenge-page-creator.js

@@ -50,6 +50,11 @@ const generic = path.resolve(
   '../../src/templates/Challenges/generic/show.tsx'
 );
 
+const examDownload = path.resolve(
+  __dirname,
+  '../../src/templates/Challenges/exam-download/show.tsx'
+);
+
 const views = {
   backend,
   classic,
@@ -60,7 +65,8 @@ const views = {
   exam,
   msTrophy,
   fillInTheBlank,
-  generic
+  generic,
+  examDownload
 };
 
 function getIsFirstStepInBlock(id, edges) {