Stabilize cypress tests

Author: djhi

cypress/support/LoginPage.js

@@ -1,8 +1,10 @@
 export default url => ({
     elements: {
+        appLoader: '.app-loader',
         username: "input[name='username']",
         password: "input[name='password']",
         submitButton: 'button',
+        title: '#react-admin-title',
     },
 
     navigate() {
@@ -18,5 +20,7 @@ export default url => ({
         cy.get(this.elements.username).clear().type(username);
         cy.get(this.elements.password).clear().type(password);
         cy.get(this.elements.submitButton).click();
+        cy.get(this.elements.title);
+        cy.get(this.elements.appLoader);
     },
 });

examples/simple/vite.config.ts

@@ -25,7 +25,7 @@ export default defineConfig(async () => {
                     dirName,
                     'package.json'
                 ),
-                { assert: { type: 'json' } }
+                { with: { type: 'json' } }
             );
             aliases.push({
                 find: new RegExp(`^${packageJson.default.name}$`),