ui: add namespace: preselect current NS as parent for new one

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

www/datastore/Content.js

@@ -482,6 +482,7 @@ Ext.define('PBS.DataStoreContent', {
 	    Ext.create('PBS.window.NamespaceEdit', {
 		autoShow: true,
 		datastore: view.datastore,
+		namespace: view.namespace ?? '',
 		listeners: {
 		    destroy: () => view.down('pbsNamespaceSelector').store?.load(),
 		},

www/window/NamespaceEdit.js

@@ -34,6 +34,7 @@ Ext.define('PBS.window.NamespaceEdit', {
 		name: 'parent',
 		fieldLabel: gettext('Parent Namespace'),
 		cbind: {
+		    value: '{namespace}',
 		    datastore: '{datastore}',
 		},
 	    },