implemented ratings, fixes

app/client/components/BookOverviewTabs.tsx

@@ -0,0 +1,23 @@
+import { Tabs } from '@chakra-ui/react';
+import { Link } from '@tanstack/react-router';
+
+export function BookOverviewTabs({
+  bookId,
+  currentTab
+}: {
+  readonly bookId: string;
+  readonly currentTab: 'contents' | 'reviews';
+}) {
+  return (
+    <Tabs.Root defaultValue="members" value={currentTab}>
+      <Tabs.List>
+        <Link to={`/work/book/${bookId}/overview/contents`}>
+          <Tabs.Trigger value="contents">Contents</Tabs.Trigger>
+        </Link>
+        <Link to={`/work/book/${bookId}/overview/reviews`}>
+          <Tabs.Trigger value="reviews">Reviews</Tabs.Trigger>
+        </Link>
+      </Tabs.List>
+    </Tabs.Root>
+  );
+}