Billing manager - note stag-popup tabindex fix

resources/views/app/practice-management/billing-manager.blade.php

@@ -264,6 +264,7 @@
                             $('.note-popup-content')
                                 .find('a, button, input, select')
                                     .attr('disabled', 'disabled')
+                                    .attr('tabindex', '-1')
                                     .css('pointer-events', 'none');
                         });
                         showStagPopup('note-popup');