Fix note highlight being lost after real time update

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/33483

A bit of a browser hack to get it to re-evaluate what the `:target` is

app/assets/javascripts/notes.js

@@ -298,8 +298,13 @@ const normalizeNewlines = function(str) {
     Notes.prototype.setupNewNote = function($note) {
       // Update datetime format on the recent note
       gl.utils.localTimeAgo($note.find('.js-timeago'), false);
+
       this.collapseLongCommitList();
       this.taskList.init();
+
+      // Refresh the `:target` selector
+      // This stops the note highlight from being removed after real time update
+      window.location = window.location;
     };
     /*