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/@babel/helper-string-parser/README.md

@@ -0,0 +1,19 @@
+# @babel/helper-string-parser
+
+> A utility package to parse strings
+
+See our website [@babel/helper-string-parser](https://babeljs.io/docs/babel-helper-string-parser) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save @babel/helper-string-parser
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/helper-string-parser
+```