[Utils > unfreeze] Add

src/lib/utils/unfreeze.ts

@@ -0,0 +1,8 @@
+// https://stackoverflow.com/a/68339174
+
+export function unfreeze(obj: object) {
+    if (Object.isFrozen(obj)) {
+        return Object.assign({}, obj);
+    }
+    return obj;
+}