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/fonts/infra/cached-font-fetcher.js

@@ -0,0 +1,50 @@
+import { isAbsolute } from "node:path";
+import { AstroError, AstroErrorData } from "../../../core/errors/index.js";
+class CachedFontFetcher {
+  #storage;
+  #fetch;
+  #readFile;
+  constructor({
+    storage,
+    fetch,
+    readFile
+  }) {
+    this.#storage = storage;
+    this.#fetch = fetch;
+    this.#readFile = readFile;
+  }
+  async #cache(storage, key, cb) {
+    const existing = await storage.getItemRaw(key);
+    if (existing) {
+      return existing;
+    }
+    const data = await cb();
+    await storage.setItemRaw(key, data);
+    return data;
+  }
+  async fetch({ id, url, init }) {
+    return await this.#cache(this.#storage, id, async () => {
+      try {
+        if (isAbsolute(url)) {
+          return await this.#readFile(url);
+        }
+        const response = await this.#fetch(url, init ?? void 0);
+        if (!response.ok) {
+          throw new Error(`Response was not successful, received status code ${response.status}`);
+        }
+        return Buffer.from(await response.arrayBuffer());
+      } catch (cause) {
+        throw new AstroError(
+          {
+            ...AstroErrorData.CannotFetchFontFile,
+            message: AstroErrorData.CannotFetchFontFile.message(url)
+          },
+          { cause }
+        );
+      }
+    });
+  }
+}
+export {
+  CachedFontFetcher
+};