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/rollup/dist/parseAst.js

@@ -0,0 +1,22 @@
+/*
+  @license
+	Rollup.js v4.59.0
+	Sun, 22 Feb 2026 07:31:53 GMT - commit ae846957f109690a866cc3e4c073613c338d3476
+
+	https://github.com/rollup/rollup
+
+	Released under the MIT License.
+*/
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+require('./native.js');
+const parseAst_js = require('./shared/parseAst.js');
+require('node:path');
+
+
+
+exports.parseAst = parseAst_js.parseAst;
+exports.parseAstAsync = parseAst_js.parseAstAsync;
+//# sourceMappingURL=parseAst.js.map