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/diff/libcjs/patch/reverse.js

@@ -0,0 +1,37 @@
+"use strict";
+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.reversePatch = reversePatch;
+function reversePatch(structuredPatch) {
+    if (Array.isArray(structuredPatch)) {
+        // (See comment in unixToWin for why we need the pointless-looking anonymous function here)
+        return structuredPatch.map(function (patch) { return reversePatch(patch); }).reverse();
+    }
+    return __assign(__assign({}, structuredPatch), { oldFileName: structuredPatch.newFileName, oldHeader: structuredPatch.newHeader, newFileName: structuredPatch.oldFileName, newHeader: structuredPatch.oldHeader, hunks: structuredPatch.hunks.map(function (hunk) {
+            return {
+                oldLines: hunk.newLines,
+                oldStart: hunk.newStart,
+                newLines: hunk.oldLines,
+                newStart: hunk.oldStart,
+                lines: hunk.lines.map(function (l) {
+                    if (l.startsWith('-')) {
+                        return "+".concat(l.slice(1));
+                    }
+                    if (l.startsWith('+')) {
+                        return "-".concat(l.slice(1));
+                    }
+                    return l;
+                })
+            };
+        }) });
+}