Fix lint issues with propTypes (#2713)

packages/netlify-cms-core/src/components/Collection/Entries/EntriesCollection.js

@@ -22,6 +22,7 @@ class EntriesCollection extends React.Component {
     cursor: PropTypes.object.isRequired,
     loadEntries: PropTypes.func.isRequired,
     traverseCollectionCursor: PropTypes.func.isRequired,
+    entriesLoaded: PropTypes.bool,
   };
 
   componentDidMount() {

packages/netlify-cms-core/src/components/Editor/Editor.js

@@ -79,6 +79,11 @@ class Editor extends React.Component {
     }),
     hasChanged: PropTypes.bool,
     t: PropTypes.func.isRequired,
+    retrieveLocalBackup: PropTypes.func,
+    localBackup: PropTypes.bool,
+    loadLocalBackup: PropTypes.func,
+    persistLocalBackup: PropTypes.func,
+    deleteLocalBackup: PropTypes.func,
   };
 
   componentDidMount() {

packages/netlify-cms-core/src/components/Editor/EditorControlPane/Widget.js

@@ -54,6 +54,7 @@ export default class Widget extends Component {
     uniqueFieldId: PropTypes.string.isRequired,
     loadEntry: PropTypes.func.isRequired,
     t: PropTypes.func.isRequired,
+    onValidateObject: PropTypes.func,
   };
 
   shouldComponentUpdate(nextProps) {