test(e2e): update Playwright screenshots and add better tests and assertions for area calculations (#6022)

* Add (better) assertions for area calculation fixes.
* Add SVG and measurement side panel area for freehand ROI test.
* Add Playwright viewport screenshot scope migration guide.
* Update cornerstonjs dependencies to 4.22.8. Ensure all versions of @babel/preset-env are 7.29.5.

---------

Co-authored-by: Ghadeer Albattarni <165973963+GhadeerAlbattarni@users.noreply.github.com>

tests/3DFourUp.spec.ts

@@ -15,7 +15,11 @@ test.beforeEach(async ({ page }) => {
 });
 
 test.describe('3D four up Test', async () => {
-  test('should render 3D four up correctly.', async ({ page, mainToolbarPageObject }) => {
+  test('should render 3D four up correctly.', async ({
+    page,
+    mainToolbarPageObject,
+    viewportPageObject,
+  }) => {
     await mainToolbarPageObject.layoutSelection.threeDFourUp.click();
 
     await attemptAction(() => reduce3DViewportSize(page), 10, 100);
@@ -24,7 +28,7 @@ test.describe('3D four up Test', async () => {
 
     await checkForScreenshot(
       page,
-      page,
+      viewportPageObject.grid,
       screenShotPaths.threeDFourUp.threeDFourUpDisplayedCorrectly
     );
   });