feat: add Apple Books store link for The Last Economy

Author: thinkingjimmy

src/app/page.jsx

@@ -94,7 +94,7 @@ export default function IndexPage() {
             <div className="mt-12 grid grid-cols-2 md:grid-cols-4 gap-4 text-sm md:text-base">
               <a href="https://storage.googleapis.com/webstatics.ii.inc/The%20Last%20Economy.pdf" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><CloudDownload /> Download PDF</a>
               <a href="https://storage.googleapis.com/webstatics.ii.inc/The%20Last%20Economy%20-%20FINAL%20EPUB.epub" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><CloudDownload /> Download EPUB</a>
-              <a href="#" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><Image src="/logos/apple.svg" alt="Apple" width={20} height={20} className="invert" /> Apple Books</a>
+              <a href="https://books.apple.com/us/book/the-last-economy/id6751326083" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><Image src="/logos/apple.svg" alt="Apple" width={20} height={20} className="invert" /> Apple Books</a>
               <a href="https://notebooklm.google.com/notebook/64caceae-51f4-4744-ad4c-772cb9237ad2" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><Notebook /> NotebookLM </a>
               <a href="https://chatgpt.com/share/68a7323b-0620-8009-9de3-947e65565e63" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><Image src="/logos/chatgpt.svg" alt="ChatGPT" width={20} height={20} className="invert" /> GPT-5 </a>
               <a href="https://claude.ai/share/1bc9ace1-9638-40cc-b436-a4cd6a7fd0cd" className="border-2 border-[#BAE9F4] hover:bg-[#BAE9F4]/50 transition-colors py-3 px-4 rounded-lg flex items-center justify-center gap-2 font-bold" target="_blank"><Image src="/logos/claude.svg" alt="Claude" width={20} height={20} className="invert" /> Claude</a>