remove max-height from debug logo

data/web/templates/debug.twig

@@ -37,7 +37,7 @@
           <div class="card-body">
             <div class="row">
               <div class="col-sm-12 col-md-4 d-flex flex-column">
-                <img class="img-responsive my-auto" alt="mailcow-logo" src="{{ logo|default('/img/cow_mailcow.svg') }}" style="max-height: 200px;">
+                <img class="img-responsive my-auto" alt="mailcow-logo" src="{{ logo|default('/img/cow_mailcow.svg') }}">
               </div>
               <div class="col-sm-12 col-md-8">
                 <div class="table-responsive" style="margin-top: 10px;">