polyfill structuredclone on legacy browsers

Fixes APP-T4SK

package.json

@@ -155,6 +155,7 @@
     "@types/invariant": "^2.2.37",
     "@types/lodash.throttle": "^4.1.9",
     "@types/node": "^24.12.2",
+    "@ungap/structured-clone": "1.3.1",
     "array.prototype.findlast": "^1.2.3",
     "babel-plugin-transform-remove-console": "^6.9.4",
     "bcp-47": "^2.1.0",
@@ -284,6 +285,7 @@
     "@types/psl": "1.1.1",
     "@types/react": "^19.2.17",
     "@types/react-dom": "^19.2.3",
+    "@types/ungap__structured-clone": "1.2.0",
     "@typescript/native": "npm:typescript@^7.0.2",
     "babel-jest": "^29.7.0",
     "babel-plugin-module-resolver": "^5.0.2",