feat: implement PWA support with manifest and icons and add mobile-optimized bottom navigation

next.config.ts

@@ -1,4 +1,12 @@
 import type { NextConfig } from "next";
+import withPWAInit from "@ducanh2912/next-pwa";
+
+const withPWA = withPWAInit({
+  dest: "public",
+  disable: false, // Explicitly enabling PWA even in development mode per user request
+  register: true,
+  skipWaiting: true,
+});
 
 const nextConfig: NextConfig = {
   images: {
@@ -12,4 +20,4 @@ const nextConfig: NextConfig = {
   },
 };
 
-export default nextConfig;
+export default withPWA(nextConfig);