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-tap.js

@@ -0,0 +1,22 @@
+// https://en.wikipedia.org/wiki/Test_Anything_Protocol
+
+Prism.languages.tap = {
+	'fail': /not ok[^#{\n\r]*/,
+	'pass': /ok[^#{\n\r]*/,
+	'pragma': /pragma [+-][a-z]+/,
+	'bailout': /bail out!.*/i,
+	'version': /TAP version \d+/i,
+	'plan': /\b\d+\.\.\d+(?: +#.*)?/,
+	'subtest': {
+		pattern: /# Subtest(?:: .*)?/,
+		greedy: true
+	},
+	'punctuation': /[{}]/,
+	'directive': /#.*/,
+	'yamlish': {
+		pattern: /(^[ \t]*)---[\s\S]*?[\r\n][ \t]*\.\.\.$/m,
+		lookbehind: true,
+		inside: Prism.languages.yaml,
+		alias: 'language-yaml'
+	}
+};