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/vite-plugin-astro/compile.d.ts

@@ -0,0 +1,14 @@
+import { type ESBuildTransformResult } from 'vite';
+import { type CompileProps, type CompileResult } from '../core/compile/index.js';
+import type { Logger } from '../core/logger/core.js';
+import type { CompileMetadata } from './types.js';
+interface CompileAstroOption {
+    compileProps: CompileProps;
+    astroFileToCompileMetadata: Map<string, CompileMetadata>;
+    logger: Logger;
+}
+export interface CompileAstroResult extends Omit<CompileResult, 'map'> {
+    map: ESBuildTransformResult['map'];
+}
+export declare function compileAstro({ compileProps, astroFileToCompileMetadata, logger, }: CompileAstroOption): Promise<CompileAstroResult>;
+export {};