Use the new listuser endpoint to search for users

src/services/listUsers.js

@@ -0,0 +1,14 @@
+import AbstractService from './abstractService'
+import UserModel from '../models/user'
+
+export default class ListUserService extends AbstractService {
+	constructor() {
+		super({
+			getAll: '/lists/{listID}/listusers'
+		})
+	}
+	
+	modelFactory(data) {
+		return new UserModel(data)
+	}
+}