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/jsx-runtime/index.d.ts

@@ -0,0 +1,12 @@
+import { Fragment, Renderer } from '../runtime/server/index.js';
+declare const AstroJSX = "astro:jsx";
+export interface AstroVNode {
+    [Renderer]: string;
+    [AstroJSX]: boolean;
+    type: string | ((...args: any) => any);
+    props: Record<string | symbol, any>;
+}
+export declare function isVNode(vnode: any): vnode is AstroVNode;
+export declare function transformSlots(vnode: AstroVNode): AstroVNode | undefined;
+declare function createVNode(type: any, props?: Record<string, any>, key?: string | number): AstroVNode;
+export { AstroJSX, Fragment, createVNode as jsx, createVNode as jsxDEV, createVNode as jsxs };