guestExperience: add alternate user routes

app/soapbox/features/ui/index.tsx

@@ -609,7 +609,12 @@ const UI: React.FC = ({ children }) => {
 
   const isProfileOrStatusPage = !!matchPath(
     history.location.pathname,
-    ['/@:username', '/@:username/posts/:statusId'],
+    [
+      '/@:username',
+      '/@:username/posts/:statusId',
+      '/users/:username',
+      '/users/:username/statuses/:statusId',
+    ],
   );
 
   // Require login if Guest Experience is disabled and we're not trying