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/cli/infra/cli-command-runner.js

@@ -0,0 +1,18 @@
+class CliCommandRunner {
+  #helpDisplay;
+  constructor({
+    helpDisplay
+  }) {
+    this.#helpDisplay = helpDisplay;
+  }
+  run(command, ...args) {
+    if (this.#helpDisplay.shouldFire()) {
+      this.#helpDisplay.show(command.help);
+      return;
+    }
+    return command.run(...args);
+  }
+}
+export {
+  CliCommandRunner
+};