feat: add row highlighting for popular and unread

public/src/client/topic/threadTools.js

@@ -53,7 +53,9 @@ define('forum/topic/threadTools', [
 				}
 
 				if (app.previousUrl && !app.previousUrl.match('^/topic')) {
-					ajaxify.go(app.previousUrl, handleBack.onBackClicked);
+					ajaxify.go(app.previousUrl, function () {
+						handleBack.onBackClicked(true);
+					});
 				} else if (ajaxify.data.category) {
 					ajaxify.go('category/' + ajaxify.data.category.slug, handleBack.onBackClicked);
 				}

public/src/modules/handleBack.js

@@ -32,8 +32,9 @@ define('handleBack', [
 		});
 	}
 
-	function onBackClicked() {
-		if ((ajaxify.data.template.category || ajaxify.data.template.recent)) {
+	function onBackClicked(isMarkedUnread) {
+		var highlightUnread = isMarkedUnread && ajaxify.data.template.unread;
+		if (ajaxify.data.template.category || ajaxify.data.template.recent || ajaxify.data.template.popular || highlightUnread) {
 			var bookmarkIndex = storage.getItem('category:bookmark');
 			var clickedIndex = storage.getItem('category:bookmark:clicked');