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/csso/lib/replace/Value.js

@@ -0,0 +1,26 @@
+import { property as resolveName } from 'css-tree';
+import font from './property/font.js';
+import fontWeight from './property/font-weight.js';
+import background from './property/background.js';
+import border from './property/border.js';
+import outline from './property/border.js';
+
+const handlers = {
+    'font': font,
+    'font-weight': fontWeight,
+    'background': background,
+    'border': border,
+    'outline': outline
+};
+
+export default function compressValue(node) {
+    if (!this.declaration) {
+        return;
+    }
+
+    const property = resolveName(this.declaration.property);
+
+    if (handlers.hasOwnProperty(property.basename)) {
+        handlers[property.basename](node);
+    }
+};