Update helper to run a cell

Author: jtpio

ui-tests/test/smoke.spec.ts

@@ -32,7 +32,7 @@ test.describe('Smoke', () => {
 
     try {
       // we may have to select the kernel first
-      await notebook.click('text="Select"', { timeout: 2000 });
+      await notebook.click('text="Select"', { timeout: 5000 });
     } catch (e) {
       // The kernel is already selected
     }

ui-tests/test/utils.ts

@@ -8,7 +8,7 @@ import { Page } from '@playwright/test';
 export async function runAndAdvance(
   page: IJupyterLabPageFixture | Page
 ): Promise<void> {
-  await page.click(".jp-Toolbar-item [data-icon='ui-components:run']");
+  await page.keyboard.press('Shift+Enter');
 }
 
 /**