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-lua.js

@@ -0,0 +1,20 @@
+Prism.languages.lua = {
+	'comment': /^#!.+|--(?:\[(=*)\[[\s\S]*?\]\1\]|.*)/m,
+	// \z may be used to skip the following space
+	'string': {
+		pattern: /(["'])(?:(?!\1)[^\\\r\n]|\\z(?:\r\n|\s)|\\(?:\r\n|[^z]))*\1|\[(=*)\[[\s\S]*?\]\2\]/,
+		greedy: true
+	},
+	'number': /\b0x[a-f\d]+(?:\.[a-f\d]*)?(?:p[+-]?\d+)?\b|\b\d+(?:\.\B|(?:\.\d*)?(?:e[+-]?\d+)?\b)|\B\.\d+(?:e[+-]?\d+)?\b/i,
+	'keyword': /\b(?:and|break|do|else|elseif|end|false|for|function|goto|if|in|local|nil|not|or|repeat|return|then|true|until|while)\b/,
+	'function': /(?!\d)\w+(?=\s*(?:[({]))/,
+	'operator': [
+		/[-+*%^&|#]|\/\/?|<[<=]?|>[>=]?|[=~]=?/,
+		{
+			// Match ".." but don't break "..."
+			pattern: /(^|[^.])\.\.(?!\.)/,
+			lookbehind: true
+		}
+	],
+	'punctuation': /[\[\](){},;]|\.+|:+/
+};