[v9.0.x] Query History: Do not show "load more" button when query history item is deleted (#50097)

(cherry picked from commit 927b6e33c0)

Co-authored-by: Piotr Jamróz <pm.jamroz@gmail.com>

public/app/features/explore/state/history.ts

@@ -60,9 +60,10 @@ const updateRichHistoryState = ({ updatedQuery, deletedId }: SyncHistoryUpdatesO
         .map((query) => (query.id === updatedQuery?.id ? updatedQuery : query))
         // or remove
         .filter((query) => query.id !== deletedId);
+      const deletedItems = item.richHistory.length - newRichHistory.length;
       dispatch(
         richHistoryUpdatedAction({
-          richHistoryResults: { richHistory: newRichHistory, total: item.richHistoryTotal },
+          richHistoryResults: { richHistory: newRichHistory, total: item.richHistoryTotal! - deletedItems },
           exploreId,
         })
       );