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/vite-plugin-integrations-container/index.d.ts

@@ -0,0 +1,8 @@
+import type { Plugin as VitePlugin } from 'vite';
+import type { Logger } from '../core/logger/core.js';
+import type { AstroSettings } from '../types/astro.js';
+/** Connect Astro integrations into Vite, as needed. */
+export default function astroIntegrationsContainerPlugin({ settings, logger, }: {
+    settings: AstroSettings;
+    logger: Logger;
+}): VitePlugin;

node_modules/astro/dist/vite-plugin-integrations-container/index.js

@@ -0,0 +1,29 @@
+import { normalizePath } from "vite";
+import { runHookServerSetup } from "../integrations/hooks.js";
+function astroIntegrationsContainerPlugin({
+  settings,
+  logger
+}) {
+  return {
+    name: "astro:integration-container",
+    async configureServer(server) {
+      if (server.config.isProduction) return;
+      await runHookServerSetup({ config: settings.config, server, logger });
+    },
+    async buildStart() {
+      if (settings.injectedRoutes.length === settings.resolvedInjectedRoutes.length) return;
+      settings.resolvedInjectedRoutes = await Promise.all(
+        settings.injectedRoutes.map((route) => resolveEntryPoint.call(this, route))
+      );
+    }
+  };
+}
+async function resolveEntryPoint(route) {
+  const resolvedId = await this.resolve(route.entrypoint.toString()).then((res) => res?.id).catch(() => void 0);
+  if (!resolvedId) return route;
+  const resolvedEntryPoint = new URL(`file://${normalizePath(resolvedId)}`);
+  return { ...route, resolvedEntryPoint };
+}
+export {
+  astroIntegrationsContainerPlugin as default
+};