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-j.js

@@ -0,0 +1,28 @@
+Prism.languages.j = {
+	'comment': {
+		pattern: /\bNB\..*/,
+		greedy: true
+	},
+	'string': {
+		pattern: /'(?:''|[^'\r\n])*'/,
+		greedy: true
+	},
+	'keyword': /\b(?:(?:CR|LF|adverb|conjunction|def|define|dyad|monad|noun|verb)\b|(?:assert|break|case|catch[dt]?|continue|do|else|elseif|end|fcase|for|for_\w+|goto_\w+|if|label_\w+|return|select|throw|try|while|whilst)\.)/,
+	'verb': {
+		// Negative look-ahead prevents bad highlighting
+		// of ^: ;. =. =: !. !:
+		pattern: /(?!\^:|;\.|[=!][.:])(?:\{(?:\.|::?)?|p(?:\.\.?|:)|[=!\]]|[<>+*\-%$|,#][.:]?|[?^]\.?|[;\[]:?|[~}"i][.:]|[ACeEIjLor]\.|(?:[_\/\\qsux]|_?\d):)/,
+		alias: 'keyword'
+	},
+	'number': /\b_?(?:(?!\d:)\d+(?:\.\d+)?(?:(?:ad|ar|[ejpx])_?\d+(?:\.\d+)?)*(?:b_?[\da-z]+(?:\.[\da-z]+)?)?|_\b(?!\.))/,
+	'adverb': {
+		pattern: /[~}]|[\/\\]\.?|[bfM]\.|t[.:]/,
+		alias: 'builtin'
+	},
+	'operator': /[=a][.:]|_\./,
+	'conjunction': {
+		pattern: /&(?:\.:?|:)?|[.:@][.:]?|[!D][.:]|[;dHT]\.|`:?|[\^LS]:|"/,
+		alias: 'variable'
+	},
+	'punctuation': /[()]/
+};