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-tree/cjs/syntax/config/lexer.cjs

@@ -0,0 +1,14 @@
+'use strict';
+
+const genericConst = require('../../lexer/generic-const.cjs');
+const data = require('../../data.cjs');
+const index = require('../node/index.cjs');
+
+const lexerConfig = {
+    generic: true,
+    cssWideKeywords: genericConst.cssWideKeywords,
+    ...data,
+    node: index
+};
+
+module.exports = lexerConfig;