fix(api, client): update Gatsby, webpack & related things (#41452)

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

client/src/templates/Challenges/redux/create-question-epic.js

@@ -8,7 +8,9 @@ import {
   projectFormValuesSelector
 } from '../redux';
 import { tap, mapTo } from 'rxjs/operators';
-import { forumLocation } from '../../../../../config/env.json';
+import envData from '../../../../../config/env.json';
+
+const { forumLocation } = envData;
 
 function filesToMarkdown(files = {}) {
   const moreThenOneFile = Object.keys(files).length > 1;