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/cli/info/infra/cli-clipboard.d.ts

@@ -0,0 +1,13 @@
+import type { Logger } from '../../../core/logger/core.js';
+import type { CommandExecutor, OperatingSystemProvider } from '../../definitions.js';
+import type { Clipboard, Prompt } from '../definitions.js';
+export declare class CliClipboard implements Clipboard {
+    #private;
+    constructor({ operatingSystemProvider, commandExecutor, logger, prompt, }: {
+        operatingSystemProvider: OperatingSystemProvider;
+        commandExecutor: CommandExecutor;
+        logger: Logger;
+        prompt: Prompt;
+    });
+    copy(text: string): Promise<void>;
+}