updated calls to user paginable controller (#1971)

Author: xsrust

app/views/paginable/users/_index.html.erb

@@ -5,11 +5,11 @@
       <table class="table table-hover table-bordered">
         <thead>
           <tr>
-              <th scope="col"><%= _('Name') %>&nbsp;<%= paginable_sort_link('firstname') %></th>
-              <th scope="col"><%= _('Email') %>&nbsp;<%= paginable_sort_link('email') %></th>
+              <th scope="col"><%= _('Name') %>&nbsp;<%= paginable_sort_link('users.firstname') %></th>
+              <th scope="col"><%= _('Email') %>&nbsp;<%= paginable_sort_link('users.email') %></th>
               <th scope="col"><%= _('Organisation') %>&nbsp;<%= paginable_sort_link('orgs.name') %></th>
-              <th scope="col" class="text-center date-column"><%= _('Created date') %>&nbsp;<%= paginable_sort_link('created_at') %></th>
-              <th scope="col" class="text-center date-column"><%= _('Last activity') %>&nbsp;<%= paginable_sort_link('last_sign_in_at') %></th>
+              <th scope="col" class="text-center date-column"><%= _('Created date') %>&nbsp;<%= paginable_sort_link('users.created_at') %></th>
+              <th scope="col" class="text-center date-column"><%= _('Last activity') %>&nbsp;<%= paginable_sort_link('users.last_sign_in_at') %></th>
               <th scope="col" class="text-center sorter-false"><%= _('Plans') %></th>
               <th scope="col" class="text-center sorter-false"><%= _('Current Privileges') %></th>
               <th scope="col" class="text-center"><%= _('Active') %></th>