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/assets/utils/index.js

@@ -0,0 +1,35 @@
+import {
+  isRemoteAllowed,
+  matchHostname,
+  matchPathname,
+  matchPattern,
+  matchPort,
+  matchProtocol
+} from "@astrojs/internal-helpers/remote";
+import { isESMImportedImage, isRemoteImage, resolveSrc } from "./imageKind.js";
+import { imageMetadata } from "./metadata.js";
+import {
+  emitESMImage,
+  emitImageMetadata
+} from "./node/emitAsset.js";
+import { getOrigQueryParams } from "./queryParams.js";
+import { inferRemoteSize } from "./remoteProbe.js";
+import { hashTransform, propsToFilename } from "./transformToPath.js";
+export {
+  emitESMImage,
+  emitImageMetadata,
+  getOrigQueryParams,
+  hashTransform,
+  imageMetadata,
+  inferRemoteSize,
+  isESMImportedImage,
+  isRemoteAllowed,
+  isRemoteImage,
+  matchHostname,
+  matchPathname,
+  matchPattern,
+  matchPort,
+  matchProtocol,
+  propsToFilename,
+  resolveSrc
+};