Added privacy policy, upgrades

app/Http/PrivacyPolicyController.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http;
+
+use Illuminate\View\View;
+use League\CommonMark\CommonMarkConverter;
+
+final class PrivacyPolicyController
+{
+    public function __invoke(): View
+    {
+        $markdown = file_get_contents(resource_path('markdown/privacy_policy.md'));
+        $content = (new CommonMarkConverter)->convert($markdown);
+
+        $timestamp = filemtime(resource_path('markdown/privacy_policy.md'));
+        $modified = date('Y-m-d', $timestamp);
+
+        return view('privacy-policy', [
+            'content' => $content,
+            'lastUpdated' => $modified,
+        ]);
+    }
+}