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/fs-lite.d.cts

@@ -0,0 +1,8 @@
+export interface FSStorageOptions {
+    base?: string;
+    ignore?: (path: string) => boolean;
+    readOnly?: boolean;
+    noClear?: boolean;
+}
+declare const _default: (opts: FSStorageOptions | undefined) => import("..").Driver<FSStorageOptions | undefined, never>;
+export default _default;