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/tailwindcss/dist/resolve-config-B4yBzhca.d.ts

@@ -0,0 +1,29 @@
+import { _ as _default } from './colors-C__qRT83.js';
+
+type NamedUtilityValue = {
+    kind: 'named';
+    /**
+     * ```
+     * bg-red-500
+     *    ^^^^^^^
+     *
+     * w-1/2
+     *   ^
+     * ```
+     */
+    value: string;
+    /**
+     * ```
+     * w-1/2
+     *   ^^^
+     * ```
+     */
+    fraction: string | null;
+};
+
+type PluginUtils = {
+    theme: (keypath: string, defaultValue?: any) => any;
+    colors: typeof _default;
+};
+
+export type { NamedUtilityValue as N, PluginUtils as P };