test(popover, item): fix flaky tests (#26415)

core/src/components/item/test/highlight/item.e2e.ts

@@ -7,6 +7,8 @@ test.describe('item: highlight', () => {
 
     await page.setIonViewport();
 
-    expect(await page.screenshot()).toMatchSnapshot(`item-highlight-diff-${page.getSnapshotSettings()}.png`);
+    expect(await page.screenshot({ animations: 'disabled' })).toMatchSnapshot(
+      `item-highlight-diff-${page.getSnapshotSettings()}.png`
+    );
   });
 });

core/src/components/popover/test/test.utils.ts

@@ -33,8 +33,8 @@ export const closePopover = async (page: E2EPage, popover?: Locator) => {
 
 export const screenshotPopover = async (page: E2EPage, buttonID: string, testName: string) => {
   await page.goto(`src/components/popover/test/${testName}`);
+  await page.setIonViewport();
 
   await openPopover(page, buttonID);
-  await page.setIonViewport();
   expect(await page.screenshot()).toMatchSnapshot(`popover-${testName}-${buttonID}-${page.getSnapshotSettings()}.png`);
 };