feat: Add Hardcover currently reading integration with i18n support

- Add CurrentlyReading component with beautiful design
- Integrate into About section
- Add German and English translations
- Add n8n API route for Hardcover integration
- Add comprehensive documentation for n8n setup

app/components/About.tsx

@@ -6,6 +6,7 @@ import { useEffect, useState } from "react";
 import { useLocale, useTranslations } from "next-intl";
 import type { JSONContent } from "@tiptap/react";
 import RichTextClient from "./RichTextClient";
+import CurrentlyReading from "./CurrentlyReading";
 
 const staggerContainer: Variants = {
   hidden: { opacity: 0 },
@@ -239,6 +240,14 @@ const About = () => {
                 ))}
               </div>
             </div>
+
+            {/* Currently Reading */}
+            <motion.div
+              variants={fadeInUp}
+              className="mt-8"
+            >
+              <CurrentlyReading />
+            </motion.div>
           </motion.div>
         </div>
       </div>