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/actions/loadActions.js

@@ -0,0 +1,13 @@
+import { ActionsCantBeLoaded } from "../core/errors/errors-data.js";
+import { AstroError } from "../core/errors/index.js";
+import { ENTRYPOINT_VIRTUAL_MODULE_ID } from "./consts.js";
+async function loadActions(moduleLoader) {
+  try {
+    return await moduleLoader.import(ENTRYPOINT_VIRTUAL_MODULE_ID);
+  } catch (error) {
+    throw new AstroError(ActionsCantBeLoaded, { cause: error });
+  }
+}
+export {
+  loadActions
+};