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/prismjs/components/prism-xml-doc.js

@@ -0,0 +1,40 @@
+(function (Prism) {
+
+	/**
+	 * If the given language is present, it will insert the given doc comment grammar token into it.
+	 *
+	 * @param {string} lang
+	 * @param {any} docComment
+	 */
+	function insertDocComment(lang, docComment) {
+		if (Prism.languages[lang]) {
+			Prism.languages.insertBefore(lang, 'comment', {
+				'doc-comment': docComment
+			});
+		}
+	}
+
+	var tag = Prism.languages.markup.tag;
+
+	var slashDocComment = {
+		pattern: /\/\/\/.*/,
+		greedy: true,
+		alias: 'comment',
+		inside: {
+			'tag': tag
+		}
+	};
+	var tickDocComment = {
+		pattern: /'''.*/,
+		greedy: true,
+		alias: 'comment',
+		inside: {
+			'tag': tag
+		}
+	};
+
+	insertDocComment('csharp', slashDocComment);
+	insertDocComment('fsharp', slashDocComment);
+	insertDocComment('vbnet', tickDocComment);
+
+}(Prism));