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/prismjs/components/prism-jsonp.js

@@ -0,0 +1,7 @@
+Prism.languages.jsonp = Prism.languages.extend('json', {
+	'punctuation': /[{}[\]();,.]/
+});
+
+Prism.languages.insertBefore('jsonp', 'punctuation', {
+	'function': /(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*\()/
+});