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/node-fetch-native/lib/proxy.d.ts

@@ -0,0 +1,32 @@
+import type * as http from "node:http";
+import type * as https from "node:https";
+import type * as undici from "undici";
+
+export type ProxyOptions = {
+  /**
+   * HTTP(s) Proxy URL
+   *
+   * Default is read from `https_proxy`, `http_proxy`, `HTTPS_PROXY` or `HTTP_PROXY` environment variables
+   * */
+  url?: string;
+
+  /**
+   * List of hosts to skip proxy for (comma separated or array of strings)
+   *
+   * Default is read from `no_proxy` or `NO_PROXY` environment variables
+   *
+   * Hots starting with a leading dot, like `.foo.com` are also matched against domain and all its subdomains like `bar.foo.com`
+   */
+  noProxy?: string | string[];
+};
+
+export declare const createProxy: (opts?: ProxyOptions) => {
+  agent: http.Agent | https.Agent | undefined;
+  dispatcher: undici.Dispatcher | undefined;
+};
+
+export declare const createFetch: (
+  proxyOptions?: ProxyOptions,
+) => typeof globalThis.fetch;
+
+export declare const fetch: typeof globalThis.fetch;