Extent ZFSPool Content with rootdir

www/manager/storage/ZFSPoolEdit.js

@@ -91,6 +91,15 @@ Ext.define('PVE.storage.ZFSPoolInputPanel', {
 	    }));
 	}
 
+	me.column1.push(
+	    {xtype: 'pveContentTypeSelector',
+	     cts: ['images', 'rootdir'],
+	     fieldLabel: gettext('Content'),
+	     name: 'content',
+	     value: ['images', 'rootdir'],
+	     multiSelect: true,
+	     allowBlank: false});
+
 	me.column2 = [
 	    {
 		xtype: 'pvecheckbox',