fix: Add support for showStudyList configuration setting (#3009)

I followed suit with how it was implemented in the v2 branch, on the 404
page I just hit the link back to the study list if we're not configured
to display it. See PR #2131

platform/viewer/src/routes/NotFound/NotFound.tsx

@@ -2,15 +2,20 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { Link } from 'react-router-dom';
 
+import { useAppConfig } from '@state';
+
 const NotFound = ({
   message = 'Sorry, this page does not exist.',
   showGoBackButton = true,
 }) => {
+  const [appConfig] = useAppConfig();
+  const { showStudyList } = appConfig;
+
   return (
     <div className="w-full h-full flex justify-center items-center text-white">
       <div>
         <h4>{message}</h4>
-        {showGoBackButton && (
+        {showGoBackButton && showStudyList && (
           <h5>
             <Link to={'/'}>Go back to the Study List</Link>
           </h5>