web/admin: fix group member table order

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/pages/groups/GroupForm.ts

@@ -60,7 +60,6 @@ export class GroupForm extends Form<Group> {
             </ak-form-element-horizontal>
             <ak-form-element-horizontal
                 label=${t`Parent`}
-                ?required=${true}
                 name="parent">
                 <select class="pf-c-form-control">
                     <option value="" ?selected=${this.group?.parent === undefined}>---------</option>

web/src/pages/groups/MemberSelectModal.ts

@@ -21,6 +21,8 @@ export class MemberSelectTable extends TableModal<User> {
     @property()
     confirm!: (selectedItems: User[]) => Promise<unknown>;
 
+    order = "username";
+
     apiEndpoint(page: number): Promise<AKResponse<User>> {
         return new CoreApi(DEFAULT_CONFIG).coreUsersList({
             ordering: this.order,