fix: add missing cell reference without sheet name to event

Author: ugur-vaadin

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

@@ -784,7 +784,13 @@ private String getFormattedCellValue(Cell cell) {
 
     private void fireCellValueChangeEvent(Cell cell) {
         Set<CellReference> cells = new HashSet<CellReference>();
-        cells.add(new CellReference(cell));
+        CellReference ref = new CellReference(cell);
+        cells.add(ref);
+        if (ref.getSheetName() != null) {
+            CellReference refWithoutSheetName = new CellReference(ref.getRow(),
+                    ref.getCol());
+            cells.add(refWithoutSheetName);
+        }
         spreadsheet.fireEvent(new CellValueChangeEvent(spreadsheet, cells));
     }