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/css-select/lib/esm/sort.d.ts

@@ -0,0 +1,12 @@
+import type { InternalSelector } from "./types.js";
+import { type Traversal } from "css-what";
+export declare function isTraversal(token: InternalSelector): token is Traversal;
+/**
+ * Sort the parts of the passed selector,
+ * as there is potential for optimization
+ * (some types of selectors are faster than others)
+ *
+ * @param arr Selector to sort
+ */
+export default function sortByProcedure(arr: InternalSelector[]): void;
+//# sourceMappingURL=sort.d.ts.map