Replace index pages by app folder

app/page.js

@@ -0,0 +1,32 @@
+import Box from '@mui/material/Box'
+import Container from '@mui/material/Container'
+import {notFound} from 'next/navigation'
+import {jwennStats} from '../lib/oki-api'
+
+import Statistik from '../components/akey/statistik'
+import Akey from '../components/akey'
+
+import okiLogo from '../public/logo-512x512.png'
+
+async function jwennDone() {
+  const statistik = await jwennStats()
+
+  if (!statistik) {
+    notFound()
+  }
+
+  return statistik
+}
+
+export default async function Page() {
+  const statistik = await jwennDone()
+
+  return (
+    <Box sx={{display: 'flex', flexDirection: 'column', minHeight: '100vh'}}>
+      <Akey logo={okiLogo} />
+      <Container sx={{flexGrow: 100}}>
+        <Statistik statistik={statistik} />
+      </Container>
+    </Box>
+  )
+}