add menu separator and delete icon

extensions/admin_ui/media/css/base.css

@@ -80,6 +80,12 @@
    background-image: url(../images/icons/xssrays.png);
 }
 
+.zombie-tree-ctxMenu-delete {
+   background-image: url(../images/icons/delete.png);
+   background-size: 32px 32px;
+   background-repeat: no-repeat;
+}
+
 .x-tree-node-leaf .x-tree-node-icon {
 	width: 13px;
 	height: 13px;

extensions/admin_ui/media/javascript/ui/panel/zombiesTreeList.js

@@ -76,9 +76,12 @@ Ext.extend(zombiesTreeList, Ext.tree.TreePanel, {
                         id: 'xssrays_hooked_domain',
                         text: 'Launch XssRays on Hooked Domain',
                         iconCls: 'zombie-tree-ctxMenu-xssrays'
+                    },{
+                        xtype: 'menuseparator'
                     },{
                         id: 'delete_zombie',
                         text: 'Delete Zombie',
+                        iconCls: 'zombie-tree-ctxMenu-delete'
                     }
 
           ],