Adds 'multi delete' for attachment tables (#3111)

* Adds 'multi delete' for attachment tables

- Should roll out seamlessly to any attachment table

* JS linting

InvenTree/build/templates/build/detail.html

@@ -375,7 +375,7 @@ onPanelLoad('attachments', function() {
             },
             label: 'attachment',
             success: function(data, status, xhr) {
-                location.reload();
+                $('#attachment-table').bootstrapTable('refresh');
             }
         }
     );