Fix dashboard size (#11405)

* Fix dashboard size
Missing container
scrollbar and empty space on the right

* Can't change the width it will break existing dashboard :S
Odd that the default width 6 doesn't fit nicely into 20

resources/views/overview/default.blade.php

@@ -3,6 +3,7 @@
 @section('title', __('Overview'))
 
 @section('content')
+<div class="container-fluid">
 @include('alerts.modals.ack')
 @include('alerts.modals.notes')
 @if (!$bare)
@@ -148,6 +149,7 @@
 <div class="gridster grid">
     <ul></ul>
 </div>
+</div>
 @endsection
 
 @section('javascript')