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/css-tree/lib/tokenizer/names.js

@@ -0,0 +1,28 @@
+export default [
+    'EOF-token',
+    'ident-token',
+    'function-token',
+    'at-keyword-token',
+    'hash-token',
+    'string-token',
+    'bad-string-token',
+    'url-token',
+    'bad-url-token',
+    'delim-token',
+    'number-token',
+    'percentage-token',
+    'dimension-token',
+    'whitespace-token',
+    'CDO-token',
+    'CDC-token',
+    'colon-token',
+    'semicolon-token',
+    'comma-token',
+    '[-token',
+    ']-token',
+    '(-token',
+    ')-token',
+    '{-token',
+    '}-token',
+    'comment-token'
+];