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/package-manager-detector/dist/constants.d.mts

@@ -0,0 +1,8 @@
+import { A as Agent, a as AgentName } from './shared/package-manager-detector.DksAilYA.mjs';
+
+declare const AGENTS: Agent[];
+declare const LOCKS: Record<string, AgentName>;
+declare const INSTALL_METADATA: Record<string, AgentName>;
+declare const INSTALL_PAGE: Record<Agent, string>;
+
+export { AGENTS, INSTALL_METADATA, INSTALL_PAGE, LOCKS };