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/client/dev-toolbar/ui-library/index.js

@@ -0,0 +1,22 @@
+import { DevToolbarBadge } from "./badge.js";
+import { DevToolbarButton } from "./button.js";
+import { DevToolbarCard } from "./card.js";
+import { DevToolbarHighlight } from "./highlight.js";
+import { DevToolbarIcon } from "./icon.js";
+import { DevToolbarRadioCheckbox } from "./radio-checkbox.js";
+import { DevToolbarSelect } from "./select.js";
+import { DevToolbarToggle } from "./toggle.js";
+import { DevToolbarTooltip } from "./tooltip.js";
+import { DevToolbarWindow } from "./window.js";
+export {
+  DevToolbarBadge,
+  DevToolbarButton,
+  DevToolbarCard,
+  DevToolbarHighlight,
+  DevToolbarIcon,
+  DevToolbarRadioCheckbox,
+  DevToolbarSelect,
+  DevToolbarToggle,
+  DevToolbarTooltip,
+  DevToolbarWindow
+};