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/astro/dist/assets/fonts/infra/dev-url-resolver.d.ts

@@ -0,0 +1,10 @@
+import type { UrlResolver } from '../definitions.js';
+export declare class DevUrlResolver implements UrlResolver {
+    #private;
+    constructor({ base, searchParams, }: {
+        base: string;
+        searchParams: URLSearchParams;
+    });
+    resolve(id: string): string;
+    get cspResources(): Array<string>;
+}