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/runtime/client/dev-toolbar/settings.d.ts

@@ -0,0 +1,21 @@
+import { type Placement } from './ui-library/window.js';
+export interface Settings {
+    disableAppNotification: boolean;
+    verbose: boolean;
+    placement: Placement;
+}
+export declare const defaultSettings: {
+    disableAppNotification: false;
+    verbose: false;
+    placement: "bottom-center";
+};
+export declare const settings: {
+    readonly config: Settings;
+    updateSetting: <Key extends keyof Settings>(key: Key, value: Settings[Key]) => void;
+    logger: {
+        log: (message: string, level?: "log" | "warn" | "error") => void;
+        warn: (message: string) => void;
+        error: (message: string) => void;
+        verboseLog: (message: string) => void;
+    };
+};