Add scroll={false} to the last two reader-entry Links

The back-to-manga header Link and the end-of-manga "Back to Home" Link
were missing scroll={false}, so navigating away and returning (or going
home then re-entering via Continue Reading) could lose the resume scroll.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

components/PageReader.tsx

@@ -373,6 +373,7 @@ export function PageReader({
         <div className="flex items-center gap-3 px-4 h-12 max-w-4xl mx-auto">
           <Link
             href={`/manga/${mangaSlug}`}
+            scroll={false}
             className="text-foreground/80 hover:text-foreground transition-colors shrink-0"
             aria-label="Back to manga"
           >
@@ -476,6 +477,7 @@ export function PageReader({
           <p className="text-base font-semibold">{mangaTitle}</p>
           <Link
             href="/"
+            scroll={false}
             className="px-5 py-2 rounded-lg bg-accent text-white text-sm font-semibold transition-colors hover:bg-accent-hover"
           >
             Back to Home