add playwright layout

e2e/example.spec.ts

@@ -0,0 +1,15 @@
+import { expect, test } from '@playwright/test';
+
+test.beforeEach(async ({page})=>{
+  await page.goto('/')
+  await expect(page.locator('div').nth(2)).toContainClass('bg-green-400');
+})
+
+
+test('has title', async ({ page }) => {
+  await page.goto('/');
+  // Expect a title "to contain" a substring.
+  await expect(page).toHaveTitle(/Showbridge/);
+});
+
+