We're getting so close! :3
There was some shared components in `UserItemListPage` that needed updated too, even though the rest of the page isn't migrated yet.
Oh oops, I missed this path change when I changed the route to `/user/:id/lists`! This caused searching by email to redirect to the homepage, but with a valid URL in the address bar; and refreshing the page would hit the redirect defined in `vercel.json`, redirect to the new route, and load the correct page.
Fixed!