Features: Memory page rendering and other bug fixes (#11784)

### What problem does this PR solve?

Features: Memory page rendering and other bug fixes
- Rendering of the Memory list page
- Rendering of the message list page in Memory
- Fixed an issue where the empty state was incorrectly displayed when
search criteria were applied
- Added a web link for the API-Key
- modifying the index_mode attribute of the Confluence data source.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/memory/index.tsx

@@ -0,0 +1,17 @@
+import Spotlight from '@/components/spotlight';
+import { Outlet } from 'umi';
+import { SideBar } from './sidebar';
+
+export default function DatasetWrapper() {
+  return (
+    <section className="flex h-full flex-col w-full">
+      <div className="flex flex-1 min-h-0">
+        <SideBar></SideBar>
+        <div className=" relative flex-1 overflow-auto border-[0.5px] border-border-button p-5 rounded-md mr-5 mb-5">
+          <Spotlight />
+          <Outlet />
+        </div>
+      </div>
+    </section>
+  );
+}