Changed cursor to wait while waiting for attempt to be deleted.

edx_proctoring/static/proctoring/js/views/proctored_exam_attempt_view.js

@@ -174,6 +174,7 @@ var edx = edx || {};
             if (!confirm(gettext('Are you sure you want to remove this student\'s exam attempt?'))) {
                 return;
             }
+            $('body').css('cursor', 'wait');
             var $target = $(event.currentTarget);
             var attemptId = $target.data("attemptId");
 
@@ -187,6 +188,7 @@ var edx = edx || {};
                 success: function () {
                     // fetch the attempts again.
                     self.hydrate();
+                    $('body').css('cursor', 'auto');
                 }
             });
         }