test(list): take screenshot of single component (#26458)

core/src/components/list/test/inset/list.e2e.ts

@@ -2,14 +2,25 @@ import { expect } from '@playwright/test';
 import { test } from '@utils/test/playwright';
 
 test.describe('list: inset', () => {
-  test.beforeEach(async ({ page }) => {
-    await page.goto('/src/components/list/test/inset');
-  });
-  test.describe('list: visual regression tests', () => {
+  test.describe('list: rendering', () => {
     test('should not have visual regressions', async ({ page }) => {
-      await page.setIonViewport();
+      await page.setContent(`
+        <ion-content color="primary">
+          <div class="wrapper" style="display: flex">
+            <ion-list inset="true" style="width: 100%">
+              <ion-item>Pokémon Yellow</ion-item>
+              <ion-item>Super Metroid</ion-item>
+              <ion-item>Mega Man X</ion-item>
+              <ion-item>The Legend of Zelda</ion-item>
+              <ion-item lines="full">Halo</ion-item>
+            </ion-list>
+          </div>
+        </ion-content>
+      `);
 
-      expect(await page.screenshot()).toMatchSnapshot(`list-inset-diff-${page.getSnapshotSettings()}.png`);
+      const listWrapper = page.locator('.wrapper');
+
+      expect(await listWrapper.screenshot()).toMatchSnapshot(`list-inset-diff-${page.getSnapshotSettings()}.png`);
     });
   });
 });