Increase vertical spacing between heading and login button

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

resources/views/filament/pages/auth/login.blade.php

@@ -1,5 +1,5 @@
 <x-filament-panels::page.simple>
-    <div class="mt-2">
+    <div class="mt-6">
     <a
         href="{{ route('auth.nextcloud') }}"
         class="flex w-full items-center justify-center gap-3 rounded-lg px-4 py-3 text-sm font-semibold text-white shadow-sm transition hover:opacity-90"