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/@astrojs/compiler/dist/node/sync.d.ts

@@ -0,0 +1,16 @@
+import { TransformOptions, TransformResult, ParseOptions, ParseResult, ConvertToTSXOptions, TSXResult, transform as transform$1, parse as parse$1, convertToTSX as convertToTSX$1 } from '../shared/types.js';
+import '../shared/ast.js';
+import '../shared/diagnostics.js';
+
+type UnwrappedPromise<T> = T extends (...params: any) => Promise<infer Return> ? (...params: Parameters<T>) => Return : T;
+interface Service {
+    transform: UnwrappedPromise<typeof transform$1>;
+    parse: UnwrappedPromise<typeof parse$1>;
+    convertToTSX: UnwrappedPromise<typeof convertToTSX$1>;
+}
+declare const transform: (input: string, options: TransformOptions | undefined) => TransformResult;
+declare const parse: (input: string, options: ParseOptions | undefined) => ParseResult;
+declare const convertToTSX: (input: string, options: ConvertToTSXOptions | undefined) => TSXResult;
+declare function startRunningService(): Service;
+
+export { convertToTSX, parse, startRunningService, transform };