fix(DnD): dragAndDrop EventWrapper.js error: cannot add property 'X',…

… object is not extensible

* Fix dragAndDrop EventWrapper.js error: cannot add property 'X', object is not extensible

Fix for error: cannot add property 'X', object is not extensible

An error appears when trying to modify this.props. The solution is to create a copy of the props using JSON.parse() and JSON.stringify()

https://stackoverflow.com/questions/55567386/react-cannot-add-property-x-object-is-not-extensible

* Update EventWrapper.js

---------

Co-authored-by: martinvu-dev <137462692+martinvu-dev@users.noreply.github.com>

src/addons/dragAndDrop/EventWrapper.js

@@ -47,7 +47,7 @@ class EventWrapper extends React.Component {
       .getAttribute('class')
       ?.includes('rbc-addons-dnd-resize')
     if (!isResizeHandle) {
-      let extendedEvent = this.props.event
+      let extendedEvent = {...this.props.event}
       extendedEvent.sourceResource = this.props.resource
       this.context.draggable.onBeginAction(this.props.event, 'move')
     }