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/cloudflare.d.mts

@@ -0,0 +1,13 @@
+import { Adapter, AdapterInstance, AdapterOptions } from '../index.mjs';
+import * as CF from '@cloudflare/workers-types';
+import '../shared/crossws.BQXMA5bH.mjs';
+
+interface CloudflareAdapter extends AdapterInstance {
+    handleUpgrade(req: CF.Request, env: unknown, context: CF.ExecutionContext): Promise<CF.Response>;
+}
+interface CloudflareOptions extends AdapterOptions {
+}
+declare const cloudflareAdapter: Adapter<CloudflareAdapter, CloudflareOptions>;
+
+export { cloudflareAdapter as default };
+export type { CloudflareAdapter, CloudflareOptions };