test(img): migrate tests to playwright (#25488)

core/src/components/img/test/basic/img.e2e.ts

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+import { expect } from '@playwright/test';
+import { test } from '@utils/test/playwright';
+
+test.describe('img: basic', () => {
+  test('should not have visual regressions', async ({ page }) => {
+    await page.goto('/src/components/img/test/basic');
+
+    await page.setIonViewport();
+
+    expect(await page.screenshot()).toMatchSnapshot(`img-basic-${page.getSnapshotSettings()}.png`);
+  });
+});

core/src/components/img/test/draggable/img.e2e.ts

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+import { expect } from '@playwright/test';
+import { test } from '@utils/test/playwright';
+
+test.describe('img: draggable', () => {
+  test('should correctly set draggable attribute on inner img element', async ({ page }) => {
+    await page.goto('/src/components/img/test/draggable');
+
+    const imgDraggableTrue = page.locator('#img-draggable-true img');
+    expect(imgDraggableTrue).toHaveAttribute('draggable', 'true');
+
+    const imgDraggableFalse = page.locator('#img-draggable-false img');
+    expect(imgDraggableFalse).toHaveAttribute('draggable', 'false');
+
+    const imgDraggableUnset = page.locator('#img-draggable-unset img');
+    expect(imgDraggableUnset).toHaveAttribute('draggable', '');
+  });
+});

core/src/components/img/test/standalone/img.e2e.ts

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+import { expect } from '@playwright/test';
+import { test } from '@utils/test/playwright';
+
+test.describe('img: standalone', () => {
+  test('should not have visual regressions', async ({ page }) => {
+    await page.goto('/src/components/img/test/standalone');
+
+    await page.setIonViewport();
+
+    expect(await page.screenshot()).toMatchSnapshot(`img-standalone-${page.getSnapshotSettings()}.png`);
+  });
+});