Limit end index to total item count

Previously, the end index could exceed the total item count, potentially causing inconsistencies in the displayed range of items. This change ensures the end index is always within the bounds of the total item count, improving the accuracy of the pagination display.

gemsfx/src/main/java/com/dlsc/gemsfx/PagingControls.java

@@ -48,6 +48,8 @@ public PagingControls() {
             int startIndex = (view.getPage() * getPageSize()) + 1;
             int endIndex = startIndex + getPageSize() - 1;
 
+            endIndex = Math.min(endIndex, getTotalItemCount());
+
             return "Showing items " + startIndex + " to " + endIndex + " of " + getTotalItemCount();
         });