web/elements: add separate flag for chips when checkboxes are enabled

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

web/src/pages/groups/MemberSelectModal.ts

@@ -13,6 +13,7 @@ import { first } from "../../utils";
 @customElement("ak-group-member-select-table")
 export class MemberSelectTable extends TableModal<User> {
     checkbox = true;
+    checkboxChip = true;
 
     searchEnabled(): boolean {
         return true;