add wait fornetwork to be idle in e2e test step

cypress/support/step_definitions/common/I_click_the_checkbox_show_donations_progress_bar_and_save.js

@@ -1,6 +1,8 @@
 import { Then } from "@badeball/cypress-cucumber-preprocessor";
+import 'cypress-network-idle';
 
 Then("I click the checkbox show donations progress bar and save", () => {
   cy.get("#showDonations").click()
   cy.get(".donations-info-button").click()
+  cy.waitForNetworkIdle(2000)
 })