fix(reader): Library in the nav, breadcrumbs in the chapter

marketing-site/components/reader/ReaderNav.jsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from "react";
 import Link from "next/link";
 
-export default function ReaderNav({ chapterName }) {
+export default function ReaderNav({ here = "library" }) {
   const [scrolled, setScrolled] = useState(false);
 
   useEffect(() => {
@@ -20,17 +20,14 @@ export default function ReaderNav({ chapterName }) {
         </Link>
 
         <div className="nav-links reader-links">
-          {chapterName ? (
-            <>
-              <Link href="/read">Library</Link>
-              <span className="nav-current" aria-current="page">
-                {chapterName}
-              </span>
-            </>
-          ) : (
+          {here === "library" ? (
             <span className="nav-current" aria-current="page">
               Library
             </span>
+          ) : (
+            <Link href="/read" className="nav-title">
+              Library
+            </Link>
           )}
         </div>