Extract useSelectState from SelectContext

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

frontend/src/Indexer/Index/Select/IndexerIndexSelectAllButton.tsx

@@ -1,5 +1,5 @@
 import React, { useCallback } from 'react';
-import { SelectActionType, useSelect } from 'App/SelectContext';
+import { useSelect } from 'App/SelectContext';
 import PageToolbarButton from 'Components/Page/Toolbar/PageToolbarButton';
 import { icons } from 'Helpers/Props';
 import translate from 'Utilities/String/translate';
@@ -25,9 +25,7 @@ function IndexerIndexSelectAllButton(props: IndexerIndexSelectAllButtonProps) {
 
   const onPress = useCallback(() => {
     selectDispatch({
-      type: allSelected
-        ? SelectActionType.UnselectAll
-        : SelectActionType.SelectAll,
+      type: allSelected ? 'unselectAll' : 'selectAll',
     });
   }, [allSelected, selectDispatch]);