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/escape-string-regexp/readme.md

@@ -0,0 +1,34 @@
+# escape-string-regexp
+
+> Escape RegExp special characters
+
+## Install
+
+```
+$ npm install escape-string-regexp
+```
+
+## Usage
+
+```js
+import escapeStringRegexp from 'escape-string-regexp';
+
+const escapedString = escapeStringRegexp('How much $ for a 🦄?');
+//=> 'How much \\$ for a 🦄\\?'
+
+new RegExp(escapedString);
+```
+
+You can also use this to escape a string that is inserted into the middle of a regex, for example, into a character class.
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-escape-string-regexp?utm_source=npm-escape-string-regexp&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>