feat: add missing propTypes

packages/web/src/contexts/Editor.jsx

@@ -1,10 +1,18 @@
 import * as React from 'react';
+import PropTypes from 'prop-types';
+
 export const EditorContext = React.createContext({
   readOnly: false,
 });
+
 export const EditorProvider = (props) => {
   const { children, value } = props;
   return (
     <EditorContext.Provider value={value}>{children}</EditorContext.Provider>
   );
 };
+
+EditorProvider.propTypes = {
+  children: PropTypes.node.isRequired,
+  value: PropTypes.shape({ readOnly: PropTypes.bool.isRequired }).isRequired,
+};