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/server/transition.d.ts

@@ -0,0 +1,8 @@
+import type { SSRResult } from '../../types/public/internal.js';
+import type { TransitionAnimationPair, TransitionAnimationValue } from '../../types/public/view-transitions.js';
+export declare function createTransitionScope(result: SSRResult, hash: string): string;
+export declare function renderTransition(result: SSRResult, hash: string, animationName: TransitionAnimationValue | undefined, transitionName: string): string;
+export declare function createAnimationScope(transitionName: string, animations: Record<string, TransitionAnimationPair>): {
+    scope: string;
+    styles: string;
+};