fix(NotFoundStudy): Fixed the viewer not-found page when showStudyList: false (#5035)

platform/app/src/routes/index.tsx

@@ -12,6 +12,7 @@ import buildModeRoutes from './buildModeRoutes';
 import PrivateRoute from './PrivateRoute';
 import PropTypes from 'prop-types';
 import { routerBase, routerBasename } from '../utils/publicUrl';
+import { useAppConfig } from '@state';
 
 const NotFoundServer = ({
   message = 'Unable to query for studies at this time. Check your data source configuration or network connection',
@@ -30,19 +31,20 @@ NotFoundServer.propTypes = {
 };
 
 const NotFoundStudy = () => {
+  const [appConfig] = useAppConfig();
+  const { showStudyList } = appConfig;
+
   return (
     <div className="absolute flex h-full w-full items-center justify-center text-white">
       <div>
         <h4>
-          One or more of the requested studies are not available at this time. Return to the{' '}
+          One or more of the requested studies are not available at this time.
-          <Link
-            className="text-primary-light"
-            to={'/'}
-          >
-            study list
-          </Link>{' '}
-          to select a different study to view.
         </h4>
+        {showStudyList && (
+          <p className="mt-2">
+            Return to the <Link className="text-primary-light" to="/">study list</Link> to select a different study to view.
+          </p>
+        )}
       </div>
     </div>
   );