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/server/scripts.js

@@ -0,0 +1,37 @@
+import islandScript from "./astro-island.prebuilt.js";
+import islandScriptDev from "./astro-island.prebuilt-dev.js";
+import { ISLAND_STYLES } from "./astro-island-styles.js";
+function determineIfNeedsHydrationScript(result) {
+  if (result._metadata.hasHydrationScript) {
+    return false;
+  }
+  return result._metadata.hasHydrationScript = true;
+}
+function determinesIfNeedsDirectiveScript(result, directive) {
+  if (result._metadata.hasDirectives.has(directive)) {
+    return false;
+  }
+  result._metadata.hasDirectives.add(directive);
+  return true;
+}
+function getDirectiveScriptText(result, directive) {
+  const clientDirectives = result.clientDirectives;
+  const clientDirective = clientDirectives.get(directive);
+  if (!clientDirective) {
+    throw new Error(`Unknown directive: ${directive}`);
+  }
+  return clientDirective;
+}
+function getPrescripts(result, type, directive) {
+  switch (type) {
+    case "both":
+      return `<style>${ISLAND_STYLES}</style><script>${getDirectiveScriptText(result, directive)}</script><script>${process.env.NODE_ENV === "development" ? islandScriptDev : islandScript}</script>`;
+    case "directive":
+      return `<script>${getDirectiveScriptText(result, directive)}</script>`;
+  }
+}
+export {
+  determineIfNeedsHydrationScript,
+  determinesIfNeedsDirectiveScript,
+  getPrescripts
+};