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/micromark/dev/index.js

@@ -0,0 +1,68 @@
+/**
+ * @import {Encoding, Value} from 'micromark-util-types'
+ */
+
+/**
+ * @typedef {import('micromark-util-types').Options} Options
+ */
+
+import {compile} from './lib/compile.js'
+import {parse} from './lib/parse.js'
+import {postprocess} from './lib/postprocess.js'
+import {preprocess} from './lib/preprocess.js'
+
+export {compile} from './lib/compile.js'
+export {parse} from './lib/parse.js'
+export {postprocess} from './lib/postprocess.js'
+export {preprocess} from './lib/preprocess.js'
+
+/**
+ * Compile markdown to HTML.
+ *
+ * > Note: which encodings are supported depends on the engine.
+ * > For info on Node.js, see:
+ * > <https://nodejs.org/api/util.html#whatwg-supported-encodings>.
+ *
+ * @overload
+ * @param {Value} value
+ *   Markdown to parse (`string` or `Uint8Array`).
+ * @param {Encoding | null | undefined} encoding
+ *   Character encoding to understand `value` as when it’s a `Uint8Array`
+ *   (`string`, default: `'utf8'`).
+ * @param {Options | null | undefined} [options]
+ *   Configuration.
+ * @returns {string}
+ *   Compiled HTML.
+ *
+ * @overload
+ * @param {Value} value
+ *   Markdown to parse (`string` or `Uint8Array`).
+ * @param {Options | null | undefined} [options]
+ *   Configuration.
+ * @returns {string}
+ *   Compiled HTML.
+ *
+ * @param {Value} value
+ *   Markdown to parse (`string` or `Uint8Array`).
+ * @param {Encoding | Options | null | undefined} [encoding]
+ *   Character encoding to understand `value` as when it’s a `Uint8Array`
+ *   (`string`, default: `'utf8'`).
+ * @param {Options | null | undefined} [options]
+ *   Configuration.
+ * @returns {string}
+ *   Compiled HTML.
+ */
+export function micromark(value, encoding, options) {
+  if (typeof encoding !== 'string') {
+    options = encoding
+    encoding = undefined
+  }
+
+  return compile(options)(
+    postprocess(
+      parse(options)
+        .document()
+        .write(preprocess()(value, encoding, true))
+    )
+  )
+}