Use snake_case in views. Closes #778

resources/views/partials/dashboard/sub-sidebar.blade.php

@@ -2,9 +2,9 @@
     <div class="sidebar-toggler visible-xs">
         <i class="icon ion-navicon"></i>
     </div>
-    <h3>{{ $subTitle }}</h3>
+    <h3>{{ $sub_title }}</h3>
     <ul class="menu">
-        @foreach($subMenu as $key => $item)
+        @foreach($sub_menu as $key => $item)
         <li><a href="{{ $item['url'] }}" class="{{ $item['active'] ? 'active' : null }}"><i class="{{ $item['icon'] }}"></i> {{ $item['title'] }}</a></li>
         @endforeach
     </ul>