Dark Mode folgt Browser-Einstellung (prefers-color-scheme), Toggle entfernt

Co-Authored-By: Claude <noreply@anthropic.com>

views/partials/head.ejs

@@ -1,12 +1,12 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Bewerbungs-Tracker</title>
-<!-- Apply the dark class before first paint to avoid a light-mode flash (FOUC). -->
+<!-- Apply the dark class before first paint to avoid a light-mode flash (FOUC).
+     Theme follows the browser/OS setting (prefers-color-scheme) — no manual toggle. -->
 <script>
     (function () {
         try {
-            var dm = localStorage.getItem('darkMode');
-            if (dm === 'enabled' || (!dm && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+            if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
                 document.documentElement.classList.add('dark');
             }
         } catch (e) { /* ignore */ }
@@ -15,7 +15,6 @@
 <!-- Tailwind CSS CDN -->
 <script src="https://cdn.tailwindcss.com"></script>
 <script>
-    // Toggle dark mode via the `.dark` class (default is `media`, i.e. OS-driven)
     tailwind.config = { darkMode: 'class' };
 </script>
 <!-- Custom CSS -->