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/prompts/lib/util/wrap.js

@@ -0,0 +1,27 @@
+'use strict';
+
+/**
+ * @param {string} msg The message to wrap
+ * @param {object} opts
+ * @param {number|string} [opts.margin] Left margin
+ * @param {number} opts.width Maximum characters per line including the margin
+ */
+module.exports = (msg, opts = {}) => {
+  const tab = Number.isSafeInteger(parseInt(opts.margin))
+    ? new Array(parseInt(opts.margin)).fill(' ').join('')
+    : (opts.margin || '');
+
+  const width = opts.width;
+
+  return (msg || '').split(/\r?\n/g)
+    .map(line => line
+      .split(/\s+/g)
+      .reduce((arr, w) => {
+        if (w.length + tab.length >= width || arr[arr.length - 1].length + w.length + 1 < width)
+          arr[arr.length - 1] += ` ${w}`;
+        else arr.push(`${tab}${w}`);
+        return arr;
+      }, [ tab ])
+      .join('\n'))
+    .join('\n');
+};