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/atrule/index.cjs

@@ -0,0 +1,27 @@
+'use strict';
+
+const container = require('./container.cjs');
+const fontFace = require('./font-face.cjs');
+const _import = require('./import.cjs');
+const layer = require('./layer.cjs');
+const media = require('./media.cjs');
+const nest = require('./nest.cjs');
+const page = require('./page.cjs');
+const scope = require('./scope.cjs');
+const startingStyle = require('./starting-style.cjs');
+const supports = require('./supports.cjs');
+
+const atrule = {
+    container,
+    'font-face': fontFace,
+    import: _import,
+    layer,
+    media,
+    nest,
+    page,
+    scope,
+    'starting-style': startingStyle,
+    supports
+};
+
+module.exports = atrule;