fix records card on slice overview, don't show hero content on the landing page if logged in

frontend/src/features/landing/templates/LandingPage.tsx

···
       currentUser={currentUser}
     >
       <div className="px-4 py-8">
+        {!currentUser?.isAuthenticated && (
+          <>
         {/* Hero Section */}
         <div className="text-center mb-16">
           <Text
···
             </div>
           </div>
         </div>
+          </>
+        )}
 
         <PageHeader title="Timeline" />
 

frontend/src/features/slices/overview/handlers.tsx

···
 import { withAuth } from "../../../routes/middleware.ts";
 import { renderHTML } from "../../../utils/render.tsx";
 import { SliceOverview } from "./templates/SliceOverview.tsx";
-import { withSliceAccess } from "../../../routes/slice-middleware.ts";
+import {
+  getSliceStats,
+  withSliceAccess,
+} from "../../../routes/slice-middleware.ts";
 import { extractSliceParams } from "../../../utils/slice-params.ts";
 
 async function handleSliceOverview(
···
     return Response.redirect(lexiconUrl, 302);
   }
 
+  const stats = await getSliceStats(context.sliceContext!.sliceUri);
+  const collections = stats.collections.map((stat) => ({
+    name: stat.name,
+    count: stat.count,
+    actors: stat.actors,
+  }));
+
   return renderHTML(
     <SliceOverview
       slice={context.sliceContext!.slice!}
       sliceId={sliceParams.sliceId}
+      collections={collections}
       currentTab="overview"
       currentUser={authContext.currentUser}
       hasSliceAccess={context.sliceContext?.hasAccess}