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.

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

platform/core/package.json

@@ -37,8 +37,8 @@
     "@cornerstonejs/codec-libjpeg-turbo-8bit": "1.2.2",
     "@cornerstonejs/codec-openjpeg": "1.3.0",
     "@cornerstonejs/codec-openjph": "2.4.7",
-    "@cornerstonejs/core": "4.22.3",
-    "@cornerstonejs/dicom-image-loader": "4.22.3",
+    "@cornerstonejs/core": "4.22.8",
+    "@cornerstonejs/dicom-image-loader": "4.22.8",
     "@ohif/ui": "3.13.0-beta.74",
     "cornerstone-math": "0.1.10",
     "dicom-parser": "1.8.21"