copy form/EmailNotificationSelector.js from manager to manager5

www/manager5/form/EmailNotificationSelector.js

+Ext.define('PVE.form.EmailNotificationSelector', {
+    extend: 'PVE.form.KVComboBox',
+    alias: ['widget.pveEmailNotificationSelector'],
+
+    initComponent: function() {
+        var me = this;
+
+        me.data = [
+            ['always', gettext('Always')],
+            ['failure', gettext('On failure only')]
+        ];
+
+        me.callParent();
+    }
+});