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/unstorage/drivers/capacitor-preferences.d.ts

@@ -0,0 +1,5 @@
+export interface CapacitorPreferencesOptions {
+    base?: string;
+}
+declare const _default: (opts: CapacitorPreferencesOptions) => import("..").Driver<CapacitorPreferencesOptions, import("@capacitor/preferences").PreferencesPlugin>;
+export default _default;