fix: show all sorted entries when pagination is disabled

Author: martinjagodic

packages/decap-cms-core/src/reducers/entries.ts

@@ -589,9 +589,12 @@ export function selectEntries(state: Entries, collection: Collection, configPage
 
   if (sortedIdsRaw && List.isList(sortedIdsRaw)) {
     const sortedIds = sortedIdsRaw as List<string>;
-    const start = (currentPage - 1) * pageSize;
-    const end = start + pageSize;
-    const pagedIds = sortedIds.slice(start, end);
+    
+    // Only apply pagination if configPageSize is explicitly provided (meaning pagination is enabled)
+    // If configPageSize is undefined, show all sorted entries
+    const pagedIds = configPageSize !== undefined 
+      ? sortedIds.slice((currentPage - 1) * pageSize, (currentPage - 1) * pageSize + pageSize)
+      : sortedIds;
 
     // Always look up entries from the global entities map to ensure correct order
     const entitiesMap = state.get('entities');