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/events/index.js

@@ -0,0 +1,12 @@
+import { AstroTelemetry } from "@astrojs/telemetry";
+import { version as viteVersion } from "vite";
+import { ASTRO_VERSION } from "../core/constants.js";
+const telemetry = new AstroTelemetry({
+  astroVersion: ASTRO_VERSION,
+  viteVersion
+});
+export * from "./error.js";
+export * from "./session.js";
+export {
+  telemetry
+};