user dropdown RTL adjustment.

Author: ahmadmrj

src/resources/views/base/inc/menu_user_dropdown.blade.php

@@ -2,7 +2,7 @@
   <a class="nav-link" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">
     <img class="img-avatar" src="{{ backpack_avatar_url(backpack_auth()->user()) }}" alt="{{ backpack_auth()->user()->name }}">
   </a>
-  <div class="dropdown-menu dropdown-menu-right mr-4 pb-1 pt-1">
+  <div class="dropdown-menu {{ config('backpack.base.html_direction') == 'rtl' ? 'dropdown-menu-left' : 'dropdown-menu-right' }} mr-4 pb-1 pt-1">
     <a class="dropdown-item" href="{{ route('backpack.account.info') }}"><i class="fa fa-user"></i> {{ trans('backpack::base.my_account') }}</a>
     <div class="dropdown-divider"></div>
     <a class="dropdown-item" href="{{ backpack_url('logout') }}"><i class="fa fa-lock"></i> {{ trans('backpack::base.logout') }}</a>