Add vue route for haystack search page

aleksis/core/assets/index.js

@@ -755,6 +755,12 @@ window.router.addRoute({
   name: "core.redirectToPdfUrl",
 });
 
+window.router.addRoute({
+  path: "/search/",
+  component: LegacyBaseTemplate,
+  name: "core.haystack_search",
+});
+
 window.router.addRoute({
   path: "/celery_progress/:taskId",
   component: CeleryProgress,