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/unstorage/drivers/session-storage.d.cts

@@ -0,0 +1,5 @@
+import { type LocalStorageOptions } from "./localstorage";
+export interface SessionStorageOptions extends LocalStorageOptions {
+}
+declare const _default: (opts: LocalStorageOptions | undefined) => import("..").Driver<LocalStorageOptions | undefined, Storage>;
+export default _default;