chore: add emitter to sheet Cell (#1712)

apis/nucleus/src/components/Sheet.jsx

@@ -1,4 +1,5 @@
 import React, { useEffect, useState, useContext, useMemo, forwardRef, useImperativeHandle, useRef } from 'react';
+import EventEmitter from 'node-event-emitter';
 import useLayout from '../hooks/useLayout';
 import getObject from '../object/get-object';
 import Cell from './Cell';
@@ -27,6 +28,8 @@ function getCellRenderer(cell, halo, initialSnOptions, initialSnPlugins, initial
     style.padding = '4px';
   }
 
+  const emitter = new EventEmitter();
+
   return (
     <div style={style} key={cell.model.id}>
       <Cell
@@ -38,6 +41,7 @@ function getCellRenderer(cell, halo, initialSnOptions, initialSnPlugins, initial
         initialSnPlugins={initialSnPlugins}
         initialError={initialError}
         onMount={onMount}
+        emitter={emitter}
         navigation={navigation}
         onError={onError}
       />