feat: implement PWA, manifest, service worker and offline indicator

src/components/PWARegistration.tsx

@@ -0,0 +1,22 @@
+'use client';
+
+import { useEffect } from 'react';
+
+export default function PWARegistration() {
+    useEffect(() => {
+        if ('serviceWorker' in navigator && window.location.hostname !== 'localhost') {
+            window.addEventListener('load', () => {
+                navigator.serviceWorker
+                    .register('/sw.js')
+                    .then((registration) => {
+                        console.log('SW registered: ', registration);
+                    })
+                    .catch((registrationError) => {
+                        console.log('SW registration failed: ', registrationError);
+                    });
+            });
+        }
+    }, []);
+
+    return null;
+}