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/db0.d.mts

@@ -0,0 +1,7 @@
+import type { Database } from "db0";
+export interface DB0DriverOptions {
+    database: Database;
+    tableName?: string;
+}
+declare const _default: (opts: DB0DriverOptions) => import("..").Driver<DB0DriverOptions, Database<import("db0").Connector<unknown>>>;
+export default _default;