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/hast-util-to-html/lib/handle/raw.d.ts

@@ -0,0 +1,19 @@
+/**
+ * Serialize a raw node.
+ *
+ * @param {Raw} node
+ *   Node to handle.
+ * @param {number | undefined} index
+ *   Index of `node` in `parent.
+ * @param {Parents | undefined} parent
+ *   Parent of `node`.
+ * @param {State} state
+ *   Info passed around about the current state.
+ * @returns {string}
+ *   Serialized node.
+ */
+export function raw(node: Raw, index: number | undefined, parent: Parents | undefined, state: State): string;
+import type { Raw } from 'mdast-util-to-hast';
+import type { Parents } from 'hast';
+import type { State } from '../index.js';
+//# sourceMappingURL=raw.d.ts.map