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/prompts/lib/dateparts/index.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = {
+  DatePart: require('./datepart'),
+  Meridiem: require('./meridiem'),
+  Day: require('./day'),
+  Hours: require('./hours'),
+  Milliseconds: require('./milliseconds'),
+  Minutes: require('./minutes'),
+  Month: require('./month'),
+  Seconds: require('./seconds'),
+  Year: require('./year'),
+}