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/oniguruma-to-es/dist/esm/utils.d.ts

@@ -0,0 +1,23 @@
+export const cp: (...codePoints: number[]) => string;
+export namespace envFlags {
+    let bugFlagVLiteralHyphenIsRange: boolean;
+    let bugNestedClassIgnoresNegation: boolean;
+}
+export function getNewCurrentFlags(current: any, { enable, disable }: {
+    enable: any;
+    disable: any;
+}): {
+    dotAll: boolean;
+    ignoreCase: boolean;
+};
+export function getOrInsert(map: any, key: any, defaultValue: any): any;
+/**
+@param {keyof Target} target
+@param {keyof Target} min
+@returns {boolean}
+*/
+export function isMinTarget(target: "auto" | "ES2025" | "ES2024" | "ES2018", min: "auto" | "ES2025" | "ES2024" | "ES2018"): boolean;
+export const r: (template: {
+    raw: readonly string[] | ArrayLike<string>;
+}, ...substitutions: any[]) => string;
+export function throwIfNullish(value: any, msg: any): any;