🐛 (editor) Fix single block duplication

apps/builder/src/components/ContextMenu.tsx

@@ -17,6 +17,7 @@ import {
 } from '@chakra-ui/react'
 
 export interface ContextMenuProps<T extends HTMLElement> {
+  onOpen?: () => void
   renderMenu: () => JSX.Element | null
   children: (
     ref: MutableRefObject<T | null>,
@@ -61,6 +62,7 @@ export function ContextMenu<T extends HTMLElement = HTMLElement>(
       if (e.currentTarget === targetRef.current) {
         e.preventDefault()
         e.stopPropagation()
+        props.onOpen?.()
         setIsOpened(true)
         setPosition([e.pageX, e.pageY])
       } else {