Add preserve-scroll modifier to x-navigate directive

- Use x-navigate.preserve-scroll to maintain sidebar scroll position during navigation
- Prevents page from scrolling to top after clicking sidebar links
- Alpine navigate automatically saves and restores scroll position

src/resources/views/livewire/sidebar-tree.blade.php

@@ -18,7 +18,7 @@
     @auth
         <div class="mt-6 pt-6 border-t border-gray-200">
             <a
-                x-navigate
+                x-navigate.preserve-scroll
                 href="{{ route('documents.create') }}"
                 class="flex items-center justify-center px-4 py-2 text-sm font-medium text-white bg-indigo-600 rounded-md hover:bg-indigo-700"
             >