fix: Fix product page syntax errors

1. Remove duplicate/broken code in product tables section
2. Fix PostCSS config for Tailwind 4
3. Add @tailwindcss/postcss dependency
4. Remove --production flag from Dockerfile (sharp required)

All fixes enable successful Docker build with favicon working.

node_modules/crossws/dist/adapters/deno.d.ts

@@ -0,0 +1,19 @@
+import { Adapter, AdapterInstance, AdapterOptions } from '../index.js';
+import '../shared/crossws.BQXMA5bH.js';
+
+interface DenoAdapter extends AdapterInstance {
+    handleUpgrade(req: Request, info: ServeHandlerInfo): Promise<Response>;
+}
+interface DenoOptions extends AdapterOptions {
+}
+type ServeHandlerInfo = {
+    remoteAddr?: {
+        transport: string;
+        hostname: string;
+        port: number;
+    };
+};
+declare const denoAdapter: Adapter<DenoAdapter, DenoOptions>;
+
+export { denoAdapter as default };
+export type { DenoAdapter, DenoOptions };