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/parse-latin/lib/plugin/make-initial-white-space-siblings.js

@@ -0,0 +1,28 @@
+/**
+ * @typedef {import('nlcst').Paragraph} Paragraph
+ * @typedef {import('nlcst').Root} Root
+ */
+
+import {visitChildren} from 'unist-util-visit-children'
+
+// Move white space starting a sentence up, so they are the siblings of
+// sentences.
+export const makeInitialWhiteSpaceSiblings = visitChildren(
+  /**
+   * @type {import('unist-util-visit-children').Visitor<Paragraph | Root>}
+   */
+  function (child, index, parent) {
+    if ('children' in child && child.children) {
+      const head = child.children[0]
+      if (head && head.type === 'WhiteSpaceNode') {
+        child.children.shift()
+        parent.children.splice(index, 0, head)
+        const next = child.children[0]
+
+        if (next && next.position && child.position) {
+          child.position.start = next.position.start
+        }
+      }
+    }
+  }
+)