feat: add search in page for books, magazines and other docs

app/(app)/books/sb/[canto]/[chapter]/[verse]/page.tsx

@@ -3,6 +3,7 @@ export const dynamic = "force-dynamic";
 import type { Metadata } from "next";
 import Link from "next/link";
 import { PageHeader } from "@/components/layout/page-header";
+import { FindInPage } from "@/components/layout/find-in-page";
 import { notFound } from "next/navigation";
 import { getBookMeta, getSingleVerse, getChapterVerseIndex } from "@/lib/api";
 import { ChapterViewer } from "@/app/(app)/books/chapter-viewer";
@@ -107,9 +108,12 @@ export default async function SbVersePage({
         >
           ← Canto {cantoInfo.number}: {cantoInfo.title}
         </Link>
-        <h1 className="mt-2 text-2xl font-bold text-foreground">
-          Chapter {chapter}: {chapterInfo.title}
-        </h1>
+        <div className="mt-2 flex items-start justify-between gap-3">
+          <h1 className="text-2xl font-bold text-foreground">
+            Chapter {chapter}: {chapterInfo.title}
+          </h1>
+          <FindInPage targetId="book-content" className="shrink-0 mt-0.5" />
+        </div>
       </PageHeader>
 
       <div className="max-w-5xl mx-auto flex">