web_export_view: fix JS selectors for v9

web_export_view/static/src/js/web_export_view.js

@@ -62,14 +62,12 @@ Sidebar.include({
                 export_columns_names.push(this.string);
             }
         });
-        var rows = view.$el.find('.oe_list_content > tbody > tr');
+        var rows = view.$el.find('.o_list_view > tbody > tr[data-id]');
         var export_rows = [];
         $.each(rows, function () {
             var $row = $(this);
-            // find only rows with data
-            if ($row.attr('data-id')) {
             var export_row = [];
-                var checked = $row.find('th input[type=checkbox]').is(':checked');
+            var checked = $row.find('.o_list_record_selector input[type=checkbox]').is(':checked');
             if (children && checked === true) {
                 $.each(export_columns_keys, function () {
                     var cell = $row.find('td[data-field="' + this + '"]').get(0);
@@ -101,7 +99,6 @@ Sidebar.include({
                 });
                 export_rows.push(export_row);
             }
-            }
         });
         $.blockUI();
         view.session.get_file({