OCPBUGS-83532: Fix race condition in CRD Cypress test

The customresourcedefinition.cy.ts test was failing intermittently
due to a race condition. After clicking "View instances" via the
kebab menu, the test immediately attempted to click the "Create YAML"
button without waiting for navigation to complete.

This fix adds two synchronization points:
1. URL validation to ensure navigation completed
2. Page load check to ensure the Create button is visible

This eliminates the race condition and stabilizes the test.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: rhamilto

frontend/packages/integration-tests/tests/crud/customresourcedefinition.cy.ts

@@ -99,6 +99,8 @@ describe('CustomResourceDefinitions', () => {
     listPage.isCreateButtonVisible();
     listPage.dvRows.shouldBeLoaded();
     listPage.dvRows.clickKebabAction(`CRD${testName}`, 'View instances');
+    cy.url().should('include', `/k8s/all-namespaces/test.example.com~v1~CRD${testName}`);
+    listPage.isCreateButtonVisible();
     listPage.clickCreateYAMLbutton();
     yamlEditor.isLoaded();
     yamlEditor.getEditorContent().then((content) => {