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/resolveImports.js

@@ -0,0 +1,24 @@
+import { isRemotePath, removeBase } from "@astrojs/internal-helpers/path";
+import { CONTENT_IMAGE_FLAG, IMAGE_IMPORT_PREFIX } from "../../content/consts.js";
+import { shorthash } from "../../runtime/server/shorthash.js";
+import { VALID_INPUT_FORMATS } from "../consts.js";
+function imageSrcToImportId(imageSrc, filePath) {
+  imageSrc = removeBase(imageSrc, IMAGE_IMPORT_PREFIX);
+  if (isRemotePath(imageSrc)) {
+    return;
+  }
+  const ext = imageSrc.split(".").at(-1)?.toLowerCase();
+  if (!ext || !VALID_INPUT_FORMATS.includes(ext)) {
+    return;
+  }
+  const params = new URLSearchParams(CONTENT_IMAGE_FLAG);
+  if (filePath) {
+    params.set("importer", filePath);
+  }
+  return `${imageSrc}?${params.toString()}`;
+}
+const importIdToSymbolName = (importId) => `__ASTRO_IMAGE_IMPORT_${shorthash(importId)}`;
+export {
+  imageSrcToImportId,
+  importIdToSymbolName
+};