fix: elements would lose some states like scroll position because of "virtual parent" optimization (#427)

* fix: elements would lose some state like scroll position because of "virtual parent" optimization

* refactor: the bugfix code

bug: elements would lose some state like scroll position because of "virtual parent" optimization

* fix: an error occured at applyMutation(remove nodes part)

error message:
Uncaught (in promise) DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node

typings/types.d.ts

@@ -354,4 +354,7 @@ export declare enum ReplayerEvents {
     StateChange = "state-change"
 }
 export declare type MaskInputFn = (text: string) => string;
+export declare type ElementState = {
+    scroll?: [number, number];
+};
 export {};