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/dev-font-file-id-generator.js

@@ -0,0 +1,37 @@
+class DevFontFileIdGenerator {
+  #hasher;
+  #contentResolver;
+  constructor({
+    hasher,
+    contentResolver
+  }) {
+    this.#hasher = hasher;
+    this.#contentResolver = contentResolver;
+  }
+  #formatWeight(weight) {
+    if (Array.isArray(weight)) {
+      return weight.join("-");
+    }
+    if (typeof weight === "number") {
+      return weight.toString();
+    }
+    return weight?.replace(/\s+/g, "-");
+  }
+  generate({
+    cssVariable,
+    originalUrl,
+    type,
+    font
+  }) {
+    return [
+      cssVariable.slice(2),
+      this.#formatWeight(font.weight),
+      font.style,
+      font.meta?.subset,
+      `${this.#hasher.hashString(this.#contentResolver.resolve(originalUrl))}.${type}`
+    ].filter(Boolean).join("-");
+  }
+}
+export {
+  DevFontFileIdGenerator
+};