fix: empty group title for board view

Author: junogueira

packages/react-notion-x/src/third-party/collection-view-board.tsx

@@ -66,8 +66,6 @@ function Board({ collectionView, collectionData, collection, padding }) {
     collectionView?.format?.board_groups2 ||
     []
 
-  const boardGroupBy = collectionView?.format?.board_columns_by?.groupBy
-
   const boardStyle = React.useMemo(
     () => ({
       paddingLeft: padding
@@ -106,18 +104,13 @@ function Board({ collectionView, collectionData, collection, padding }) {
                     {group.value?.value ? (
                       <Property
                         schema={schema}
-                        data={[
-                          [
-                            group.value?.value[boardGroupBy] ||
-                              group.value?.value
-                          ]
-                        ]}
+                        data={[[group.value?.value]]}
                         collection={collection}
                       />
                     ) : (
                       <span>
                         <EmptyIcon className='notion-board-th-empty' />
-                        {`No ${schema.name}` || 'No Select'}
+                        {schema?.name ? `No ${schema.name}` : 'No Select'}
                       </span>
                     )}