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/astro/dist/config/entrypoint.d.ts

@@ -0,0 +1,18 @@
+import type { SharpImageServiceConfig } from '../assets/services/sharp.js';
+import type { ImageServiceConfig } from '../types/public/index.js';
+export { fontProviders } from '../assets/fonts/providers/index.js';
+export { mergeConfig } from '../core/config/merge.js';
+export { validateConfig } from '../core/config/validate.js';
+export { envField } from '../env/config.js';
+export { defineConfig, getViteConfig } from './index.js';
+/**
+ * Return the configuration needed to use the Sharp-based image service
+ */
+export declare function sharpImageService(config?: SharpImageServiceConfig): ImageServiceConfig;
+/**
+ * Return the configuration needed to use the passthrough image service. This image services does not perform
+ * any image transformations, and is mainly useful when your platform does not support other image services, or you are
+ * not using Astro's built-in image processing.
+ * See: https://docs.astro.build/en/guides/images/#configure-no-op-passthrough-service
+ */
+export declare function passthroughImageService(): ImageServiceConfig;