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/cli/templates/mode/dependencies.json

@@ -32,7 +32,7 @@
     "@babel/plugin-transform-regenerator": "^7.16.7",
     "@babel/plugin-transform-runtime": "7.28.0",
     "@babel/plugin-transform-typescript": "^7.28.0",
-    "@babel/preset-env": "7.28.0",
+    "@babel/preset-env": "7.29.5",
     "@babel/preset-react": "^7.27.1",
     "@babel/preset-typescript": "^7.27.1",
     "babel-loader": "^8.0.0-beta.4",