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/prerender/routing.d.ts

@@ -0,0 +1,15 @@
+import type { AstroSettings, ComponentInstance } from '../types/astro.js';
+import type { RouteData } from '../types/public/internal.js';
+import type { DevPipeline } from '../vite-plugin-astro-server/pipeline.js';
+type GetSortedPreloadedMatchesParams = {
+    pipeline: DevPipeline;
+    matches: RouteData[];
+    settings: AstroSettings;
+};
+export declare function getSortedPreloadedMatches({ pipeline, matches, settings, }: GetSortedPreloadedMatchesParams): Promise<PreloadAndSetPrerenderStatusResult[]>;
+type PreloadAndSetPrerenderStatusResult = {
+    filePath: URL;
+    route: RouteData;
+    preloadedComponent: ComponentInstance;
+};
+export {};