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/unstorage/drivers/memory.mjs

@@ -0,0 +1,36 @@
+import { defineDriver } from "./utils/index.mjs";
+const DRIVER_NAME = "memory";
+export default defineDriver(() => {
+  const data = /* @__PURE__ */ new Map();
+  return {
+    name: DRIVER_NAME,
+    getInstance: () => data,
+    hasItem(key) {
+      return data.has(key);
+    },
+    getItem(key) {
+      return data.get(key) ?? null;
+    },
+    getItemRaw(key) {
+      return data.get(key) ?? null;
+    },
+    setItem(key, value) {
+      data.set(key, value);
+    },
+    setItemRaw(key, value) {
+      data.set(key, value);
+    },
+    removeItem(key) {
+      data.delete(key);
+    },
+    getKeys() {
+      return [...data.keys()];
+    },
+    clear() {
+      data.clear();
+    },
+    dispose() {
+      data.clear();
+    }
+  };
+});