fix: add cell reference without sheet name to cell value change event

Author: ugur-vaadin

vaadin-spreadsheet-flow-parent/vaadin-spreadsheet-flow/src/main/java/com/vaadin/flow/component/spreadsheet/CellValueManager.java

@@ -794,6 +794,13 @@ private void fireFormulaValueChangeEvent(Set<CellReference> changedCells) {
     }
 
     private void fireCellValueChangeEvent(Set<CellReference> changedCells) {
+        List<CellReference> cellRefsWithSheetName = changedCells.stream()
+                .filter(ref -> ref.getSheetName() != null).toList();
+        cellRefsWithSheetName.forEach(ref -> {
+            CellReference refWithoutSheetName = new CellReference(ref.getRow(),
+                    ref.getCol());
+            changedCells.add(refWithoutSheetName);
+        });
         spreadsheet
                 .fireEvent(new CellValueChangeEvent(spreadsheet, changedCells));
     }