adds missing non-nullable DateOnly typecheck (#1820)

Co-authored-by: Simon Lübker <[email protected]>

Radzen.Blazor/QueryableExtension.cs

@@ -788,6 +788,7 @@ internal static string GetColumnODataFilter<T>(RadzenDataGridColumn<T> column, o
                     column.FilterPropertyType == typeof(DateTime?) ||
                     column.FilterPropertyType == typeof(DateTimeOffset) ||
                     column.FilterPropertyType == typeof(DateTimeOffset?) ||
+                    column.FilterPropertyType == typeof(DateOnly) || 
                     column.FilterPropertyType == typeof(DateOnly?))
             {
                 if (columnFilterOperator == FilterOperator.IsNull || columnFilterOperator == FilterOperator.IsNotNull)